If you doubt the power of Twitter then try this.
1. Sign up for a free account
2. Find a few interesting people to follow (I strongly recommend @WeddingsByRyan

)
3. Say Hi, "@WeddingsByRyan - hi it's xxx from CC" will do it.
4. Spend 15 mins a day on it split into 3 X 5 min chunks (and for the best user experience use something like Seesmic). Post updates, ask questions, interact with people.
5. At the end of the week see if you get it or not.
Most people will find it a waste of time. The others will love it.
ETA: I forgot, I once got free cake via Twitter. What's not to like about a website where you get cake?