I have the same question, I am have a git based static generated blog, I am looking for something like

1. A git based tool to scrobble the music I am listening to, like Last.FM.

2. A status logger, I really, really miss the old MSN or GTalk days when there's a status line to show what my friends are doing or their mood. In fact most people have forgotten that's the original case for twitter.

3. A git based comment system to replace Disqus, I can merge for incoming comments or reject spam.

4. life streaming to log the movie I've watched or books I've read.

PS There is a small web sdk that enables comments on sited via github issues. see https://github.com/utterance/utterances