LinkedIn is a fair haired child these days. Some view it as the up and comer. It reports later today after Mr. Market goes home, after a stop at the Bull and Bear Pub, of course. I'm not so sure.
I've been Linked In for some months, perhaps a year. In the last couple of months, most of the groups have become spam jars. Today's latest and greatest affront: an ad for tattoos on Database Developers and Architects. Beware the slippery slope.