Dogtrax gets down on Mr. Bb, noted information siloficator and disconnector. There is a reason why we call software open. If you can't open it you don't own it. If you don't own it, you ain't free within it.
Yeah, but it is its self-hosting nodelike powers that appeal to me. And...you can hook it up to a centralized aggrgator to create something like the twitter/blog aggregator that ds106/ccourses/clmooc/winer's river2 uses to create that 'river' of connection.