• 30 Boxes | Online Calendar
  30 Boxes™ lets you connect with the people who matter most.
  30 Boxes is almost certainly the easiest way to share your calendar and your web stuff online. Organize your life, share all or parts of it with friends.Post it to your blog. Track your friends online including their Flickr, Webshots, Vox, Facebook, MySpace, blogs, and more! It's quite simply the world's most open social network.
  calendar digital flickr ical identity lifestyle microsoft myspace onebox outlook shared webshots
  in Public bookmarks with calendar mobile productivity sharing socialnetworks tools web2.0 by 10 users
• IMified - Instant Productivity
  Imified is an instant messenger buddy that works across all major IM networks and offers access to a growing number of web applications, as well as productivity tools like notes, reminders, and todo's. Imified helps you get things done faster.
  in Public bookmarks with calendar google im notes tools web2.0 by 5 users
• stikkit: home
  Stikkit is the very essence of simplicity over complexity, flexibility over rigidity, connection over competition, pragmatism
  in Public bookmarks with calendar collaboration organization productivity todos web2.0 by 15 users
• Zimbra offers Open Source email server software and shared calendar for Linux and the Mac
  Zimbra is an Ajax Microsoft exchange competitor with a webmail service that thousands of businesses and organizations use to handle email, contacts and calendaring. They also offer a great mobile solution.
  Zimbra provides open source email and calendar groupware software, Zimbra is a popular choice for Linux and Mac OS X email servers and supports SaaS deployment, appliances and virtualization platforms.
  in Public bookmarks with ajax calendar e-mail office web2.0 by 26 users

calendar from all users