Sometime in December, somebody flipped a big switch and all of a sudden everyone was inviting me to join their Linkedin network. Then suddenly last week the Kozmick Finger pointed at Orkut, and near as I can tell, all the geeks on the planet have spent this weekend busily inviting each other to be Orkut pals. It all seems mostly harmless; mind you, I haven’t actually got any use out of either of ’em. For what it’s worth, all the Orkutians seem to be heavy geeks, while about half the Linkedincrowd is VCs and businesspeople. I don’t think it’s gonna change the world, but I’ve been wrong before. To those whose invitations I’ve declined: sorry, nothing personal, it’s just that I feel I ought to either have spent some face-to-face time with you or been in some substantial online interaction.