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Dramatic Growth of Open Access: Open Data Edition
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For commentary, and links to related works see The Imaginary Journal of Poetic Economics http://poeticeconomics.blogspot.com/2006/08/dramatic-growth-of-open-access-series.html (Dramatic Growth of Open Access Series_
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12/31/20092009 growth (numeric)2009 growth (percentage)12/11/20099/30/096/30/093/31/0912/31/0812/11/20089/30.086/30/083/31/200812/31/200712/11/20079/30/200706/31/073/31/200712/31/20069/30/2006Jun-063/31/200612/31/200502/2005
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Directory of Open Access Journals (DOAJ) http://www.doaj.org/
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# of DOAJ journals4,53572319%4,4904,3614,2523,9993,8123,7813,6683,4813,3023,0313,0002,8462,7312,6182,5142,4012,2922,1581,9881,400
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# of titles added last 30 days7572347210545478182786410151173734453878
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# of journals searchable at article level1,75941932%1,7351,6641,5741,4231,3401,3291,2591,1781,072983973889823788747697653594492
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# of articles searchable at article level335,49990,89538%332,127315,407290,261266,451244,604240,314210,985190,093175,230166,781164,583148,867138,065130,014124,033109,840101,43492,75183,235
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BASE: Bielefeld Academic Search Engine http://www.base-search.net/
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# of documents22,007,367
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# of content providers1,404
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OAIster http://www.oaister.org/
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OAIster: number of recordsover 23 million (note)over 23 million (note)23,094,88822,009,01820,310,59119,379,23519,208,28917,954,81116,903,59715,598,09714,492,71914,343,24613,397,12211,985,19711,023,1129,931,9109,417,7727,605,7297,040,5866,255,5995,000,000
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OAIster: repositoriesover 1,100 contributorsover 1,100 contributors1,1391,1391,0961,0541,0511,0181,001943925914888850760726680647610578405
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Registry of Open Access Repositories (ROAR) http://roar.eprints.org/ # repositories
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1,55731826%1,5531,4701,4001,3011,2391,2291,1451,0931,036968962906862792746
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Open DOAR http://www.opendoar.org/ added April 2, 2007 (2006 from Peter Suber's SPARC Open Access Newsletter (SOAN)
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1,5581,5541,4901,4191,3731,2961,2541,1631,1181,0171,013950909853833
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Scientific Commons http://www.scientificcommons.org/ (added April 2, 2007) (2006 from Peter Suber's SOAN)
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# publications32,265,6787,887,82433%32,265,67830,547,12827,736,84926,430,90924,377,85424,152,70722,616,30919,582,98118,152,31616,845,38116,706,57116,200,67115,632,53914,554,636
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# authorsn/a9,409,2408,904,1527,909,2797,388,6237,116,2857,093,2386,877,8236,752,5986,408,060
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# repositories1,15819320%1,1581,1241,004981965963954908902893891881869849840
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Highwire Press Free Online Fulltext Articles http://highwire.stanford.edu/lists/freeart.dtl
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# free articles1,974,270-129,740-6%1,965,6711,936,8371,901,5761,891,9742,104,0102,015,0261,941,5831,897,8991,872,9801,838,3831,831,1471,808,6561,718,1881,683,8091,552,4671,435,9241,354,5591,335,5461,131,135800,000
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total # articles6,167,0091,035,72721%6,151,6056,108,4516,021,6975,609,4735,131,2825,032,0414,881,3594,792,1564,726,3654,602,2174,559,051
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Highwire Completely Free Sites4637%4647474443434442434343433937
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Sites with free back issues2832711%282283282267256256255253249249
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PubMedCentral http://www.pubmedcentral.nih.gov/
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# items (from ROAR) 100% fulltext1,603,51894,9056%1,602,0511,585,6631,564,7781530623 records1,508,6131,503,5051,474,5971,376,3591,121,1621,014,406992,285883,158840,087766,387696,503
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# journals participating in PMC (from PMC website) * PMC1780725663544538492466410
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# journals actively participating in PMC (total - predecessor - no new content)724724721671615
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# journals in PMC with immediate free access453358%450425488447418413375355321
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# journals in PMC with all articles open access39610336%362377398306293288257
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arXiv http://arxiv.org/ e-prints579,30163,92512%576,095562,066546,172530,415515,376512,366499,706485,141470,439456,470453,663441,089427,314414,115400,814386,716374,166362,334350,745
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RePEC http://repec.org/ total items825,000155,00023%813,000783,000760,000727,000670,000670,000620,000600,000575,000558,000555,000504,000485,000453,000451,000428,000385,000367,000350,000
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RePEC online (fulltext)700,000145,00026%692,000667,000648,000615,000555,000555,000510,000492,000465,000448,000445,000392,000375,000346,000343,000321,000282,000266,000250,000200,000
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E-LIS http://eprints.rclis.org/ Documents10, 1121,40116%10,0119,5949,2928,9768,7118,6548,2007,9767,5237,1047,0126,5785,9765,3754,8714,2853,8853,5393,095
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CARL Metadata Harvester http://carl-abrc-oai.lib.sfu.ca/
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# archives23744%23202017161615171717171312121212121211
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# items132,06655,82474%131,369103,688104,36692,05776,24275,08552,29249,56646,76845,02444,91740,64735,17130,05025,08024,37022,81922,56621,922
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40
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Open Access Mandate Policies based on ROARMAP http://www.eprints.org/openaccess/policysignup/
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Departmental1814350%18141364444
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Funder421240%4241383530302723
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Institutional7952208%7943393127252220
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Thesis3939393329
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Total178117198%178131119726159534640
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Proposed Mandates15545%151514141011108
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Elektronische Zeitschriftenbibliotek - Electronic Journals Library # open access journals23,43923,35622,70621,97921,307?19,99819,51018,59717,63616,46116,31515,12013,071
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Open J-Gate http://www.openj-gate.com # english-language open-access journals61981,46531%6,1255,9435,5954,8304,7334,669unavailable due to maintenance4,3884,3764,3804,353
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Peer-Reviewed35801,00240%3,5103,4163,2512,6522,5782,534
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Open Journal Systems http://pkp.sfu.ca/?q=ojs
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# of journals using OJS2,9682,0001,400*1,000900800
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Open Contact Alliance / Internet Archives
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# books under OCA principles or public domain hosted by Internet Archives1,600,0001,600,000
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www.OpenArchives.eu (added 2007, 2006 from SOAN) Dec. 31, 2007 from OpenArchives search)1,66514511,146
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PMC1: # journals participating in PMC includes predecessor, now select, and no new content titles (identified in PMC csv file as of June 30, 2009. # of journals actively participating now excludes predecessor and no new content titles.
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Data is from the resource website as of the date shown, except as noted otherwise. Early figures (February 2005) were recorded between January and February 2005, on dates not specified. OAIster data is from the most recent update, e.g. March 29 for March 31, 2007. Data is presented as an approximate indicator of the growth and extent of open access only. For example, the Directory of Open Access Journals, widely regarded as the most authoritative list of fully open access, peer-reviewed journals, contains just over 2,600 journals as of March 31, 2006, much less than the world's largest list of open access journals, that collected and maintained by Jan Szczepanski, over 4,705 titles as of early December 2005 - see http://oalibrarian.blogspot.com/2005/12/jan-szczepanski-collecting-for-world.html. The rate of addition of journals to DOAJ likely reflects internal staffing factors, in addition to the actual creation of new open access journals and/or conversion of traditional journals to open access. The rate of updating of websites listed is not known. The figure of 1,000 journals using OJS was added July 15, 2007, based on a report by John Willinsky July 11, 2007.
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The Dramatic Growth Series http://poeticeconomics.blogspot.com/2006/08/dramatic-growth-of-open-access-series.html
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The author began noting and recording the dramatic growth of open access late in 2004, inspired by rather extreme understatements of the extent of open access resources and growth at that time. For early discussion on this topic, see the SPARC Open Access Forum https://mx2.arl.org/Lists/SPARC-OAForum/List.html. For additional data and commentary, please see the following article and updates on The Imaginary Journal of Poetic Economics http://poeticeconomics.blogspot.com
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Morrison, Heather (2006) The dramatic growth of open access: implications and opportunities for resource sharing. Journal of Interlibrary Loan, Document Delivery & Electronic Reserver 16:3. E-LIS: http://eprints.rclis.org/archive/00004558/
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The Dramatic Growth of Open Access: December 31, 2005 Update & 2006 Predictions http://poeticeconomics.blogspot.com/2006/10/dramatic-growth-september-2006.html
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The Dramatic Growth of Open Access March 31, 2006 Update http://poeticeconomics.blogspot.com/2006/10/dramatic-growth-september-2006.html
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Dramatic Growth June 2006 http://poeticeconomics.blogspot.com/2006/06/dramatic-growth-june-2006.html
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Dramatic Growth September 2006 Update http://poeticeconomics.blogspot.com/2006/10/dramatic-growth-september-2006.html
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Dramatic Growth December 31, 2006 & Predictions for 2007 http://poeticeconomics.blogspot.com/2006/12/dramatic-growth-december-2006.html
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Dramatic Growth Open Data Edition March 31, 2007 http://spreadsheets.google.com/pub?key=pqCs8wrw32HFditd-SIMeZg
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Dramatic Growth of Open Access March 31, 2007 (commentary to go with Open Data Edition) http://poeticeconomics.blogspot.com/2007/03/dramatic-growth-of-open-access-update.html
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Dramatic Growth of Open Access Open Data Edition June 30, 2007 http://spreadsheets.google.com/pub?key=pqCs8wrw32HG1PETFQ6OeKw
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Dramatic Growth of Open Access June 30, 2007 (Commentary) http://poeticeconomics.blogspot.com/2007/06/dramatic-growth-of-open-access-june.html
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Dramatic Growth of Open Access September 30, 2007 (Commentary) http://poeticeconomics.blogspot.com/2007/09/dramatic-growth-of-open-access-series.html
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Directory of Open Access Journals: Already the Biggest Big Deal? http://poeticeconomics.blogspot.com/2007/12/directory-of-open-access-journals.html
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Dramatic Growth of Open Access: 2007 (Interim) http://spreadsheets.google.com/ccc?key=pqCs8wrw32HH_DP58axPuHA&hl=en
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Dramatic Growth of Open Access: 2007 (Interim) and Predictions for 2008 (Commentary) http://poeticeconomics.blogspot.com/2007/12/dramatic-growth-of-open-access-2007.html
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Dramatic Growth of Open Access: March 31, 2008 (Commentary) http://poeticeconomics.blogspot.com/2008/03/dramatic-growth-of-open-access-march-31.html
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This work is available under the following Creative Commons Canada License: Attribution-NonCommercial-ShareAlike 2.0 Canada http://creativecommons.org/licenses/by-nc-sa/2.0/ca/
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Please cite: Heather Morrison. Dramatic Growth of Open Access: Open Data Edition. (Date).
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* the number of journals using OJS is updated irregularly, and is best regarded as an estimate. OJS is open source publishing software; journals using OJS are under no obligation to report.
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Earlier figures on funding mandates courtesy of Stevan Harnad
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March 31, 2008: services with irregular or unknown updating practices have been moved to the bottom (Electronic Journals Library, Open J-Gate, # journals using OJS, www.OpenArchive.eu
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Updated December 11, 2007. DOAJ Dec. 12, 2007. Interim 2007 report.
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Minor update Dec. 17, 2007, with additional data for 2006 from the Peter Suber's January 2007 SPARC Open Access Newsletter http://www.earlham.edu/~peters/fos/newsletter/01-02-07.htm#2006
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