Which social networking site is best for your business?

Facebook & Apsense is best for social networking.

None, it's my own website, my email list, partner blogs and a little bit youtube...

GREAT ANSWER YOU ALL HAVE GAVE..THANKS .......TO ALL...:)

Apsense, Facebook and myspace

Its Facebook and Apsense for me.

Facebook is best for marketing.

I like Youtube, Facebook.

Much of that decision would include the research to find out what SITE best suits Your business and marketing Srategy.
Several of our clients find different results form different site.
For instance one company's #1 referral is Pinterest, another Google+ and several sell a lot of product through Facebook activity

Linked In, facebook, Pinterest and twitter also.

Linked In, facebook, Pinterest are good top 3 sources for promoting business.

Linkedin, FB fan page and VK.com is also good source fro networking

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I like LinkedIn Also, I like APSpense Too for learning and sharing.

LinkenIn, and of course Apsense! They are both good business-focussed sites, unlike others I could name!