• Definitions: Aggregator  Microblog  Web_feed
  
• "Micro-blogging is a form of blogging that allows users to write brief text updates (usually less than 200 characters) and publish them, either to be viewed by anyone or by a restricted group which can be chosen by the user. These messages can be submitted by a variety of means, including text messaging, instant messaging, email, MP3 or the web." http://en.wikipedia.org/wiki/Microblogging
  
• microblogging Google Group: home, about, comments
• My favorites tagged with "twitter" at de.licio.us

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• Here's a Forrester report on Microblogging (sites like Twitter).
• FriendFeed is an aggregate feed site
  
• "Jaiku is a micro-blogging and social networking...", crunchbase on jaiku
• "Seattle based Jott offers a novel and convenient service that lets users speak messages; those can be sent to themselves or others as a transcribed emails or voice messages." crunchbase on jott
• Plazes - "The idea behind the service is for everyone to be able to track the places, activities and people in their lives." crunchbase on plazes
• Plurk - "Noun. plurk (plüer-kh) - A really snazzy site that allows you to showcase the events that make up your life in deliciously digestible chunks. Low in fat, 5 calories per serving, yet chock full of goodness. Verb. plurk (plüer-kh) - To chronicle the events of your always on, action-packed, storybook, semi-charmed kinda life."  www.plurk.com/aboutUs
  
• "Tumblr is a re-envisioning of tumblelogging, a subset of blogging that uses quick, mixed-media posts." crunchbase on tumblr
• "Twitter is social networking and micro-blogging site that allows users to post their latest updates. An update is limited by 140 characters and can be posted through three methods: web form, text message, or instant message." crunchbase on twitter
• video demo of Twitter
• Yammer - 'Yammer is a tool for making companies and organizations more productive through the exchange of short frequent answers to one simple question: "What are you working on?"', 'The privacy of each network is ensured by limiting access to those with a valid company email address. Information is never shared with third parties.' - about
  
• Yurbo is a blog and allows for posting via IM. More About Yurbo.

• FriendFeed» home -
  
• Jaiku» home - badges, jaikuvision, setting your Jaiku location correctly
• News about Jaiku: 

• Jott» home - faq, howto, myjotts
• Ping.fm»   dashboard
  
• Plazes» home - Edit Your Account, tools, map widgets
• switchAbit»
  
• Tumblr» home - customize, dashboard, feeds, goodies
  

• Twitter» home - archive, inbox, sent, followers, friends, account settings, Public Timeline,
  
• My favorites tagged with "twitter" at de.licio.us
• Twittervision, badges, gcal², rtm³, search twitter, tweetcloud(e.g mine), tweetscan, twittercal.com, twittersearch, TwitPic(about), What am I doing?
• My Twitter Tweet Cloud: www.tweetclouds.com/user_pages/erich13.html
• whrrl 
• Yurbo» home -
  

• hellotxt.com - Twitter, Tumblr, Meemi, Beemood, GoZub, Frazr, Numpa, Facebook, Plaxo, Plurk. "HelloTxt is an aggregate of microblogging services through which the user can insert their messages on all main microblogging services in a simply and simultaneous way"
• monitter.com - 'Simple. It's a twitter monitor, it lets you "monitter" the twitter world for a set of 3 keywords and watch what people are saying. Cool huh?'
• Ping.fm - Can post to Microblogs, Statuses, and Blogs - e.g. Twitter Facebook Plurk MySpace LinkedIn Tumblr Identi.ca Brightkite FriendFeed Blogger Plaxo LiveJournal Bebo Mashable Xanga hi5 kwippy wordpress rejaw friendster delicious yahoo360 koornk
  
• Posty - Adobe AIR app that can post to various microblogs - e.g. Twitter Tumblr Friendfeed Identi.ca
  
• shareaholic , contains a twitter client (Can tweet from the Location bar)
  
• summize (e.g. erich13)
  
• switchAbit» - "SwitchAbit is a utility that allows users to control their content routing across multiple services, permitting control on a post-by-post basis (re: where content should go). Like the Cc: function in email, users send a message once, and have it appear on multiple services": blogger facebook jaiku tumblr twitter wordpress flickr
  
• tweetcloud(e.g mine)
• twitku⁴ - TwitKu.com a free social network mashup - Post to Twitter, Jaiku, and/or Pownce from twitku
• Twitterbar - a Mozilla browser Add-On

• twittercal  - send direct messages from cell phone, browser or instant message to your Google Calendar via twitter user called "gcal"
• twitterfeed.com - have your blog automatically twitter your posts
• Twitterfox - a Mozilla browser Add-On
• Twittervision - "A real-time geographic visualization of posts to Twitter."
• TwitPic(about)
• Remember the Milk (RTM) - send direct messages from cell phone, browser or instant message to your todo list via twitter user called "rtm"
  
• jaikuvision - "Just log on to your Jaiku account, set your Location (in the Jaiku sidebar) and post a message. Then your message along with your location will pop up here!"
• more...
  
• "Here are 55 articles and tools that will assist you with your Twittering": www.thespinningdonut.com/55-twitter-tots
  

BriteKite brightkite.com

identi.ca

• Jaiku is was primarily a Microblog, but also is was sort of a feed Aggregator.
• "in the process of porting Jaiku over to Google App Engine" - Google Code Blog: Changes for Jaiku and Farewell to Dodgeball and Mashup Editor
• CrunchBase jaiku Directory Entry. About Jaiku, Jaiku is now owned by Google. Developers: devku.org
  
• My jaiku name: erich13

• Jott users call 1-877-568-8486, and then users "tell Jott the name (which will be located in the imported contacts). Lastly, users record their message, and hang up. Within minutes, the message shows up in the recipient’s inbox, translated into text. Users also have the option of sending the voice message itself by immediately pressing 1. The message shows up as an audio file in their email inbox."
• Cruchbase Jott Directory Entry
• My jott name: erich13
  

• Crunchbase Ping.fm Company Profile

• Plazes is a Microblog.
  
• CruchBase plazes Directory Entry

• My plazes name is: erich13
  

• Plurk is a Microblog.
• CruchBase plurk Directory Entry
• My plurk name is: erich13

• "SwitchAbit is a utility that allows users to control their content routing across multiple services, permitting control on a post-by-post basis (re: where content should go). Like the Cc: function in email, users send a message once, and have it appear on multiple services."

• Tumblr is a a Microblog and a Feed Aggregator 
  

• CrunchBase Tumblr Directory Entry
  
• Related to Tumblr is Jott
  
• My Tumblr name is erich13

• Twitter is a Microblog.
  
• CrunchBase twitter Directory Entry

• My favorites tagged with "twitter" at de.licio.us, for example:
  
• A Quick Introduction to Twitter for Bloggers
• twitterpod
• About Twitter, A Quick Introduction to Twitter for Bloggers
• The Big Juicy Twitter Guide (e.g. Twitter Guide Part #1: What is Twitter? )

• Tipster Thursdays: How To Use Twitter In 5 Unique Ways

• 17 Ways You Can Use Twitter: A Guide for Beginners, Marketers and Business Owners
• all "twitter" de.licio.us favorites
  
• Google "joined forces with Twitter and Twittervision to give you instant updates on Super Tuesday. You can watch Twitter texts from across the country and send in your own updates!"
• My twitter name: erich13

• Crunchbase Utterz Company Profile
• My Utterz name: erich13
  

• Yammer is a Microblog.

• Yurbo is a blog and allows for posting via IM
• My yurbo name is erich13

• "Whrrl allows users to discover places, movies and events by seeing where their friends are going. They can share their location and experiences with friends on the go. Whrrl users can also track the places they've been and want to go. Whrrl provides access through a mobile application and SMS."
  
• CruchBase whrrl Directory Entry
• My Whrrl name is erich13
  

Also see 

• Chat»
• Contacts»
• Status»