If you go to the Scienceblogs.com homepage you will see something like this:
Click on it (let your Firefox allow pop-ups on this site) and play. See the timeline of what happened in science and on scienceblogs during 2007. I am not sure how it works, but I think that the content will change over time (it will be up for the duration of the holidays) so you may have to check it out again and again.