I'm the co-founder of Workstax (http://www.workstax.com http://www.workstax.com), a service which, from the sounds of their overview, is very similar to what th

I'm the co-founder of Workstax (http://www.workstax.com http://www.workstax.com), a service which, from the sounds of their overview, is very similar to what these folks are going to build. We have taken ideas from Facebook/Twitter, Reddit, and SharePoint, to build our messaging system for teams: - from FB/Twitter, we took the idea of a Feed, Profile (and explicit support for tagging) - from Reddit we took the idea of voting up/down to signal to the rest of the team (but we also introduced posting quotas to counter spam, and giving you the ability to use your quota to put posts/documents at the top of the feed) - from SharePoint we took ideas about teams, documents, discussion threads, and specifically worked on search to make it better than that of SharePoint. We pushed these features out just last Thursday and I wrote a part 1 blog entry about it here: http://joubert.posterous.com/separating-the-important-messages-from-the-ir http://joubert.posterous.com/separating-the-important-messag...