It’s tough sometimes to find useful information about how to do something. Here are some resources that you can use as you develop your social media outreach.
Steve Holt’s ‘The Facebook Guide for Small Business’ (shameless self-promotion)
The 10 Things You Need To Be Doing On Foursquare Right Now (from Steve’s blog)
Getting started on Instagram (Instagram Help Center)
Just plain good advice:
How To Start Marketing With Hootsuite (I use this tool daily… love it!)