I remain skeptical of how well social media helps anyone sell books, but I do believe in having a "digital footprint" by being visible on social media. With that in mind:
You can follow Indie Writers Monthly on Twitter @indiewritersmo
You can join our Facebook group
And also find us on Google+
Finally (for now) you can find us and our books on Goodreads!
That's probably just the beginning since there are so many social networking sites.