Hi Brian, perhaps the best way to get introduced to the Project 52 that was done in 2012 is to take a look at this link:
Project 52: Index and FAQ.
Not only will you see the concept, but you can also locate everyone's Project 52 thread if you want to see how the members did. This wasn't a competition like any other at CiC. The goal was to compete with yourself to try to learn something new or improve some aspect of your personal photography each week. It is definitely a challenge just to come up with something to work on each week!
By the same token, it was a refreshing learning experience that we all benefitted from.
There is plenty of time to ask the Moderators to set one up for 2015 if there is enough interest.