Yahoo’s new social network.
It's targetted at
2. Helping college students find contacts inside companies
3. Helping companies recruit students
Yahoo owns: del.icio.us, Upcoming, flickr and 360.
They have many users through My Yahoo, Mail, Groups, Answers and Yahoo Messenger
Jake Yakomoto advises them to make everyone with a Yahoo ID an automatic member with the automatic importation of their contacts from Yahoo email, flickr, del.icio.us, etc.