Networking sites

I recently joined a site called Bizpreneur. it's a free networking site where you can make contacts with 1000's of others. You can customise your profile, join and create groups, make polls and advertise your business or affiliate programs. I think this site is a goo one to join but does it really work? I've got over 25 friends on my list now and most of them seem to want to build their businesses online and make money. Why don't you check out my page and let me know what you think
http://bizpreneur.com/mailboxmoney