On May 18th, 2003 I needed help on a Flash piece. That was three years before Twitter was developed and Second Life was just getting launched.
So I posted a brief question on a forum. More than six years later, that post has become a pseudo-cult classic on that forum and the numbers speak for themselves.
112,589 views to date! So don’t discount forums as part of your social networking. They do affect your SEO as well.
The great thing about forums is that they often need to have “real” content that have value to the community. It’s not enough to simply retweet someone’s blog post.