Yes, it is definitely COOL to connect with friends and be a social butterfly on the social network sites. Facebook, Twitter, LinkedIn, and other social networks are cost effective (free) sites… which makes connecting with your friends that much more fun.
Think about this… what if you could build your list, get more customers and even find some joint venture partners on the same sites you visit with your friends and followers? Well, you can.
Be warned though, social networks still need to be social. That means you do not go on these sites and continually push your sites, blogs, products or services. You need to build rapport with the people who connect with you on these sites… build some solid relationships.
Offer up some free advice or information on your topic of expertise… help other people first and become the expert in their eyes. Once you’ve done that, people will be a lot more receptive to you offering up what you are selling. Still… even once you’ve got the relationships built, the majority of your tweets, posts, etc. need to be social or about helping others.