The ARRL Centennial QSO Party wrapped up yesterday. From what I've read, it was a very popular event and did a lot to promote radio activity. I know I had a really good time participating in it and trying to work as many of the W1AW/p stations as I could. My enthusiasm kind of lagged towards the last few months of the year as I got distracted by other things, but it was still cool seeing people tweet about their CQP contacts and progress.
As of today, I've got 4325 points, 449 QSOs, and 83 contacts with W1AW/p stations. There's supposed to be some re-scoring taking place later, so that might change once all the logs are submitted and re-scored.
Great idea ARRL!