1. Screen-Sharing
   1. GoToMeeting
   2. eBLVD
   3. ConnectNow
   4. Microsoft Shared View
   5. Crossloop
   6. Yuuguu
   7. WebExNow
   8. LiveLook
   9. Vyew
   10. Glance
   11. Yugma
   12. Teamviewer
   13. BeamYourScreen
   14. Jing
   15. Remote Control
       1. GoToAssist
       2. RealVNC
       3. VNC
       4. GoToMyPC
       5. logmein
       6. Teamviewer
   16. Webinars
       1. Gatherplace
       2. GoToWebinar
2. Instant Messaging
   1. Skype
   2. AOL IM
   3. Meebo
   4. Yahoo Messenger
   5. Digsby
   6. Google chat and video
   7. ICQ
   8. Jabber
   9. Windows Live Messenger
   10. Lotus Notes
   11. Adium
3. VoIP - Audio Conferencing
   1. Skype
   2. ooVoo
   3. Voxox
   4. JahJah
   5. Gizmo
   6. REBTEL
   7. GTalk
4. Web Conferencing
   1. WebEx
   2. Elluminate
   3. Wimba Classroom
   4. DigitalSamba (free for 3)
   5. Elluminate VRoom (free for 3)
   6. Adobe Connect Now (free for 3)
   7. WebTrain (free for 2)
   8. iVocalize
   9. DimDim
   10. Spreed
   11. WebHuddle
   12. Convenos
   13. Zoho Meeting
5. Co-browsing
   1. iVocalize
   2. PageShare
   3. Showdocument
   4. Flowgram
      1. asynchronous
6. WorkGrouping
   1. Ning
   2. Googlegroups
   3. YahooGroups
   4. meetup
   5. grouply
   6. Broadchoice Workspace
   7. WebOffice
   8. Yammer
      1. Twitter for your org
   9. BarCamps
7. Web Presenting
   1. Slideshare
   2. SlideRocket
   3. woices.com
   4. PresenterNet.com
   5. InstantPresenter
   6. Vcasmo
   7. 280 Slides
   8. SlideRocket
   9. Multimedia Presentations
      1. Vuvox
      2. Animoto
      3. OneTrueMedia
      4. Scrapblog
      5. bubbleshare
      6. Voice Thread
      7. Flowgram
8. Video Conferencing
   1. Gchat
   2. Skype
   3. TokBox
   4. Oovoo
   5. Sightspeed
   6. VSee
   7. Mebeam
   8. Flashmeeting
9. Document Sharing - Wikis
   1. pbwiki
   2. WetPaint
   3. wikidot
   4. mediawiki
   5. source control
      1. Subversion/Tortoise
   6. wikispaces.com
   7. GoogleDocs
   8. Socialtext
   9. Zoho
   10. mindtouch Deki
   11. other
       1. blist
   12. etherpad
10. File Sharing
    1. Microsoft Live Mesh
       1. Thanks Tim!
    2. Filedropper.com
    3. Filemail.com
    4. youSendIt
    5. drop.io
    6. transferbigfiles.com
    7. box.net
    8. dropbox
    9. senduit
    10. 4shared.com
    11. Virtual desktops
        1. Jooce
    12. Clip2Net
    13. Spider Oak
11. Collaborative Reviewing
    1. Cozimo
    2. A.nnotate
    3. Diigo
    4. uptogo
    5. ReviewBasics
    6. ConceptShare
    7. Octopz
    8. Buzzword
    9. Note taking
       1. evernote
    10. Textflow
12. Event Scheduling
    1. eventbrite
    2. GCalendar
    3. Timebridge
    4. any iCal app
    5. Chandler
13. Mindmapping
    1. mindmeister
    2. webspiration.com
    3. web-based
       1. www.mind42.com
       2. Spinscape
       3. Mindomo
       4. Bubbl.us
    4. downloadable software
       1. Mac
          1. Mindnode
          2. freemind
          3. NovaMind
       2. Windows
          1. X Mind
          2. freemind
    5. Cmap
    6. compendium
    7. the brain
    8. Gliffy
14. Project Management
    1. PHProjekt
    2. Basecamp
    3. Backpack
    4. Zoho planner
    5. Projjex
    6. Google Spreadsheet
    7. Wrike
    8. Remember the Milk
    9. voo2do
    10. VeoProject
    11. Collanos