There are far too many web-based social networks to join and actually be a meaningful member. Heck, there's even social networks for pets! I read some sage advice that I'm now acting upon and sharing with you: pick 2-3 social networks and focus on being an active, contributing member who adds value, insight and enthusiasm. I'm attempting to do just that so here are three three social networks I find most interesting, relevant and dynamic. Check me out on each one and please "friend me" if what I'm saying there interests you.