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[info]your friend's name uses N tag(s). All entries can be read by default or you can personalize your feed to include/exclude posts tagged with specific words or phrases.
How long's that been there? Sounds incredibly useful, as long as your friend is good about tagging (and doesn't overuse certain tags).
Oh yes - it's 7.06 am, I'm at BiCon, and I haven't managed to get to sleep yet. HELLO MY LOVELY BODY CLOCK! I kinda want to get to a workshop at 11.30am, but I don't honestly think that's going to happen.