The Coordinates Collection is having their winter crop this weekend. I haven't participated in this one in the past but I think I'll try to join in this weekend.
Jan 28-30. As they say, "We'll be posting challenges and games, with lots of fun and fabulous prizes to go around, so make sure you hang out with us that weekend."
All the details, challenges will be found in the forum though there really doesn't appear to be anything there yet. However, you can see what's been done in earlier crops.
Hope to see you there!