Knowee
It’s nice to see the semantic web community start to deliver practical solutions. Knowee is a perfect example; from the home page:
knowee is an open-source web contact organizer (or “online social graph manager” for better buzzword compliance). It’s decentralized and lets you aggregate, track, organize, and share information about you and the people you know.
It’s OpenID-enabled, with a nice, clean, intuitive GUI. Alas, it seems all accounts are currently taken, so I can’t yet try it.
