1. Social Publishing Services
1.1. File Sharing
1.1.1. Social Storage
1.1.1.1. Wuala.com dropbox.com WiredReach (P2P) FreeDrive
1.1.2. Media Sharing
1.1.2.1. PhotoBucket YouTube Flickr Revver Zoomr Last.fm
1.1.3. File- /Imagehoster
1.1.3.1. ImageShack.com slideworld.com MyVideo YouTube
1.2. Document Sharing
1.2.1. Social (Document) Publishing
1.2.1.1. Scribd.com doxtop.com
1.2.2. Note Taking / Sharing
1.2.2.1. textsnip.com NotePub Evernote Zoho Share memonic
1.2.3. Collaborative Document Management
1.2.3.1. Google Docs Buzzword Zoho Docs
1.3. Media Presentation
1.3.1. Live Streaming
1.3.1.1. Ustream.tv 1000mikes.com Justin.tv
1.3.2. Web Presentation
1.3.2.1. Slideshare Prezi.com Screenr voicethread.com Zoho Show DimDim Vyew WebEx gotomeeting.com
1.4. Online Presence
1.4.1. mynameise.com More! Gravatar
2. Live Conferencing Services
2.1. Audio
2.1.1. Audio Chat
2.1.1.1. Skype ivideochat.com
2.1.2. Audio Conference
2.1.2.1. Skype
2.2. Desktop Sharing
2.2.1. Remote Control
2.2.1.1. TeamViewer
2.2.2. Screencast
2.2.2.1. JingProject.com CamStudio.org
2.2.3. Co-Browsing
2.2.3.1. Elluminate vRoom Zoho Meeting Clavardon LiveLOOK
2.2.4. (Large Audience) Webinars
2.2.4.1. Zoho Meeting LiveLOOK Vyew
2.3. Document Conferencing
2.3.1. Mendeley.com Zoho Dokument Backpackit.com ShowDocument
2.4. Instant Messaging/ Chat
2.4.1. Skype Jabber ICQ Google Talk Zoho Chat
2.5. Video
2.5.1. Video Chat
2.5.1.1. Skype oovoo.com ivideochat.com tokbox.com mebeam.com tinychat.com 6rounds.com
2.5.2. Video Conference
2.5.2.1. FlashMeeting Zoho Meeting oovoo.com
2.6. Virtual 3D Worlds
2.6.1. Virtual Economies
2.6.1.1. Second Life Eve Online Croquet – Open Cobalt
2.6.2. Immersive Coolaboration
2.6.2.1. The Sims Online There
2.7. Web Conferencing / Web Meeting
2.7.1. DimDim Adobe Connect Vyew WebEx FlashMeeting gotomeeting.com
3. Automation & Notification Services
3.1. Visualisations
3.1.1. Document/Data Analysis
3.1.1.1. > ariadne.cs.kuleuven.be/edmedia > moritz.stefaner.eu/projects/revisit Google Public Data Explorer Pipes.yahoo.com Zoho Reports Impure.com Wordle Dopplr
3.1.2. Social Network Analysis
3.1.2.1. Microsoft Academic Search (Scholars) Mydentity.eu
3.2. Activity Streams
3.2.1. E-Mail Notification
3.2.2. RSS Feeds
3.2.2.1. Technorati Twittbee.de Google News
3.2.3. Aggregation
3.2.3.1. pipes.yahoo.com Google Reader
3.2.4. Social Media Aggregation
3.2.4.1. Tweetdeck Hootsuite Netvibes
3.2.5. Social Syndication
3.2.5.1. FriendFeed Google Buzz
3.3. Search
3.3.1. People Search (searching for people)
3.3.1.1. 123people.com people.yahoo.com whitepages.com spokeo.com
3.3.2. Social Search (socially enhanced search)
3.3.2.1. Google Social Search vark.com (Aardvark) stumbleupon.com scour.com Jumper 2.0
4. Messaging Services
4.1. E-Mail
4.1.1. Google Mail Zoho Mail GMX
4.2. Mailinglist
4.2.1. Mailman
4.3. Blog
4.3.1. tumblr.com blogger.com posterous.com wordpress.com Blogspot Slashdot
4.4. Micro-Blogging
4.4.1. Twitter Tumblr
4.5. Forum
4.5.1. phpBB (self) nabble.com freeforums.org forumotion.com Usenet Zoho Discussions
4.6. Group Blog
4.6.1. posterous.com blogger.com Corante Wordpress.com Weblogs Inc. Lockergnome Worldchanging Blogcritics The Command Post The Volokh Conspiracy BoingBoing
4.7. Audio- / Video Messaging
4.7.1. tokbox.com
5. Network Management Services
5.1. Social Networking
5.1.1. Peer-to-Peer
5.1.1.1. Diaspora SpinXpress Soulseek
5.1.2. Hosted
5.1.2.1. Public Social Networking
5.1.2.1.1. pip.io your-mesh.de Facebook.com BeBo Friendster ResearchGate LinkedIn Tribe Hi5 MySpace Orkut wer-kennt-wen.de Xing Ryze wiserearth.org
5.1.2.2. Private Social Networking
5.1.2.2.1. Ning.com yammer.com pip.io mixxt.de mendeley.com
5.2. Group Calendar / Event Scheduling
5.2.1. Doodle Google Calendar
5.3. Poll / Survey
5.3.1. Doodle TwtPoll Polldaddy
6. Collaborative Editors
6.1. Collaborative Reviewing
6.1.1. Vyew Mendeley
6.2. Collaborative Editing
6.2.1. Collaborative Coding
6.2.1.1. notapipe.net squadedit.com Github.com – Social Coding
6.2.2. Collaborative Writing
6.2.2.1. ietherpad.com (and other EtherPad clones) Zoho Sheet/Writer Google Docs EditGrid BeWeeVee ShowDocument
6.3. MindMapping & Diagramming
6.3.1. bubbl.us MindMeister gliffy.com ManyEyes Wordle
6.4. Whiteboarding
6.4.1. Idroo ShowDocument Vyew Twiddla.com
6.5. Wikis
6.5.1. DokuWiki MediaWiki (e.g. Wikipedia) UseMod PmWiki Twiki TikiWiki Wikispaces Wikiversity Zoho Wiki wetpaint.com
7. Shared Information Spaces
7.1. Social Tagging
7.1.1. Folksonomies
7.1.2. Social Guides
7.1.2.1. Upcoming.com Dopplr
7.1.3. Social Shopping
7.1.3.1. Amazon (some features)
7.1.4. Social Libraries
7.1.4.1. imdb.com discogs.com LibraryThing
7.2. Bookmark Sharing
7.2.1. Social Citation
7.2.1.1. bibsonomy.org citeulike.org connotea.org mendeley.com
7.2.2. Social Catalogue
7.2.2.1. cnx.org (Connexions)
7.2.3. Social Bookmarking
7.2.3.1. vi.sualize.us Diigo Delicious
7.2.4. Social Discovery
7.2.4.1. Digg reddit StumbleUpon Siteslike.com
8. Shared Workspaces
8.1. Collaborative Development Environment
8.1.1. Trac codeBeamer Codesion BugZilla
8.2. Cooperative Learning
8.2.1. Fle3 Edmodo.com
8.3. Project Management
8.3.1. collabtive.o-dyn.de (Collabtive) Zoho Projects
8.4. Source/Revision Control
8.4.1. Subversion Git
8.5. Web-based CRM
8.5.1. Salesforce Highrise Zoho CRM
8.6. Groupware
8.6.1. Wiggio PBWorks.com Socialtext.com eGroupWare BSCW