Facebook and LinkedIn (it's Facebook in a suit -- for reconnecting with ex-coworkers, for anyone who hasn't seen it) are way too addicting. I've talked to people I haven't seen in years, as I am a horrific correspondent and seem to make friends with others of similar bent.
In other news, my sinuses have decided that they, too, are nostalgic for the days of high school, and are falling victim to every cold that goes around. Bleargh.
(and Dave points out that "drained" is possibly not an appropriate mood based on my sinuses, but ;P to him.)