Adding author tags for Google to pick up is turning out to be a good idea. This is slowly boosting my click through rates on SERPs. Not to mention I now have a use for that Author tab under Google webmaster tools.
I altered this plugin a little: Social Networking in Posbit AND Profile (Twitter, Facebook, Google+, Linkedin, +more) - vBulletin.org Forum
Here's how to do it with this plugin: vBulletin.org Forum - View Single Post - Social Networking in Posbit AND Profile (Twitter, Facebook, Google+, Linkedin, +more)
Here's what things will eventually look like in Google results: