The answer from a new study by Forrester Research and GSI Commerce is no. They found that social media has little impact on our online buying habits. While social advertising can help promote awareness early in the buying cycle and spread the word about special offers, it rarely leads to direct sales. This isn't surprising considering that most people aren't thinking about making purchases when they're on Facebook or Twitter.
According to this study, online retailers may be better off spending their money on email marketing and search advertising to promote sales.
Read more about this report at USA Today.