Which types of social media should you use for your website?

The three social media sites that have the most people viewing are You Tube, Facebook, and Twitter.
My job at Madison College is to help create a website for the Communications & Performing Arts page using social media. Flickr is good choice for me because I can utilize theatre photos of recent productions. Twitter is also an option to reach out to students. Students are texting throughout the day studies have reported. Facebook is another useful tool to help create a community for a particular group.
Eric Stoller, in his presentation about Social Media, says that doing a few social media initiatives, and doing them well, is more important than having many and doing them poorly (you can follow him on Twitter).
I agree with his recommendation because most of these sites offer some useful reading. The information is located on the particular site, so you won't have to go elsewhere to find it.
It's much better to learn how the sites function before jumping right in. Another tactic is to read what other people are posting to these sites. It will help spark your own creative way of reaching out and getting your message across.
Speaking of goals and message, being clear about what the goal of your social media initiatives are will help you craft a clear and well-thought plan of action.