• WhenIsGood
  calendar coordination without even needing to log in
  in cool web services with calendar event meeting schedule tool by 8 users
• Adobe Labs - BRIO
  Host unlimited online meetings with up to 3 meeting participants. Interact with easy-to-use screen sharing, chat and whiteboards. Access your meeting instantly with a personalized, easy-to-remember URL. Distribute documents and files to meeting participants. Use integrated VoIP, teleconferencing and multi-point video.
  in cool web services with conference meeting teleconferencing videoconference virtual
• Doodle
  in cool web services with calendar event google meeting outlook schedule by 14 users
• Imagination Cubed - free shareable whiteboard from GE
  in cool web services with meeting teleconference web2 whiteboard by 8 users
• MeetWithApproval.com — A great idea for meetings, parties, friends, reunions, weekends, corporate events
  
  approve confirm corporate event events free friends meet meeting meetings online parties party reunion weekend
  in cool web services with calendar event meeting tool tools web2 by 3 users
• Renkoo
  Lets you work out party details in (their) chat tool or via IM or SMS (not clear if SMS would work outside the US).
  in cool web services with invitations meeting party tool tools web2
• TimeBridge
  Doesn't appear to have working URL to show availability
  in cool web services with calendar event google ical meeting outlook schedule
• Vyew.com
  Free Web-Based Collaboration - Vyew.com - Free Web-Based Collaboration
  in cool web services with file free meeting online sharing by 6 users
• Welcome to Dimdim
  browser-based service (no downloads or plugins required) for meetings (sharing desktop, showing slides, talking & chatting with up to 20 people for free or more for pay)
  Easy, open, affordable online meetings and webinars. Collaborate and share with no downloads required to host or attend. Mac, Windows, or Linux
  collaboration communities conferencing desktop e-learning free i instant meeting meetings messaging online sharing unified web
  in cool web services with conferencing meeting web2 by 20 users
• Welcome to Jiffle
  Scheduling Made Simple
  in cool web services with calendar event google meeting outlook schedule
• Yugma
  Free Web Conferencing, Free Online Meetings for Mac or PC
  in cool web services with conferencing meeting web by 6 users
• Yugma
  Skype addon letting you conduct virtual meetings or share desktops spontaneously. Yugma works across platforms - working seamlessly between Windows, Mac and Linux
  in cool web services with meeting screen sharing tool

meeting from all users