Well i m going to tel to all of u my personal opinon. best site is www.digitalpoint.com then www.facebook.com
I will go with Facebook which i will use it more for contacting with more friends daily. the best social networking is Facebook which the most of the people will use it.
Obviously my answer is facebook, as it has huge potential in making most out of our network. These days everyone having an account in facebook.
facebook is my favorite social media network.i spend at least two hour everyday.i use facebook for sharing photos,status and many other things.
Only Facebook is my favorite social friendship or networking site because this site is very popular among all over the world. All ages of people are use this networking site easily.Most applications of this site are very nice.you can create a page very easily in any category.You find your friend circle easily.
Facebook, Twitter,Google+ and My Space are my favorite social friendship site. I browse my Facebook every day once.