The adoption of the college social network, by the tech industry's movers and shakers, has reached ridiculous extremes. In my list of friends to confirm, this morning, one request to connect from Steve Case. It's flattering, except that my contact with the former AOL boss amounts to one awkward 30-second conversation at a DC cocktail party, and a snide item today on Valleywag about Case's latest venture. I've had pings from random Brazilians on Orkut with more of a claim to friendship than that.