The 100 for 100 Challenge is something I've participated in both previous times it was done. It is a wonderful thing for writers, challenging them to write 100 words for 100 days. This really helps you to be productive. The rules of the challenge restrict you from working on more then one project for the challenge, so you actually get something done, and don't just have 100 beginnings! ;) If you're a writer, or interesting in trying to be a writer, I heartily recommend joining me on the 100 for 100 challenge!
The link for sign ups is here.
~ a rambling author