Xobni is cool app

First lets look at Xobni (pick for the coolest company) and what they have built.

They have an adjunct application for Microsoft Outlook, which scans through the entire email database and quickly establishes relationships among the people you email, and ranks them according to frequencies and relevance.
The best feature of this application is that it can tell you when a specific person is most likely to reply to you and how quickly. It is not discovery and presence in the purist sense, but it’s close enough. Future versions of Xobni’s software will bring together various web services — everything from Flickr photos to Twitter. I like the idea of a quick query that matches a name with a photo from Flickr or Photobucket.

(If you want to try Xobni, use invite code GigaOM — only the first 100 people are going to get the beta downloads.)