• Gozub
  O que você está fazendo?
  in Public bookmarks with messaging pt_br social_networking web_2.0
• Jaiku
  Your Conversation
  Create your own microblog and connect with your friends. Post from the Web, by SMS, or from desktop clients. Add comments, use icons, link Webfeeds. Take it with you on your phone.
  in Public bookmarks with blogging google messaging social_networking web_2.0 by 19 users
• meebo.com
  
  Meebo, the web platform for IM on any network or site. Meebo connects you to MSN, Yahoo, AOL/AIM, MySpace, Facebook, Google Talk, and many more!
  aim express facebook google instant live messenger msn myspace talk web windows yahoo
  in Public bookmarks with chat client messaging by 30 users
• Pownce
  Pownce is a way to send messages, files, links, and events to your friends. You'll create a network of the people you know and then you can share stuff with all of them, just a few of them, or even just one other person really fast.
  in Public bookmarks with messaging social_networking web_2.0 by 20 users

messaging from all users