I set it up and have NEVER referred to it since

I use mine regularly, but then again networking is a necessity for me.

Well the bloody site spammed my gmail contact list AFTER I deselected most of them.

I don't see many references being added if it looks like I can't use a simple web site. GRRRRRR

is it an effective networking tool>

that LinkedIn seems like a "look at all the big wigs I know" tool...i rarely seek contacts with it.

oh..like sporting an expensive watch

wierd, I never had trouble with it spamming my lists before. I've had it work well for setting up an introduction with someone.

what the revenue stream is for the site?

the question/answer section has come in handy at times too.

their main revenue model is the jobs postings and the full membership subscription.

what does the full membership get you?

I tried to deselect most of the accounts but then got an error.

full membership lets you have more invites/emails/see more,etc.

I had to click the email verification link first which is when the spam went out. It must have been an issue with having two windows open.

what is the cost?

I'm not a premium member so I'm not sure but I think it's $20.00/month