After a random thought I posted on Twitter generated a lot of positive feedback, I'm gathering a team of interested educators to discuss a potential new web site.
The germ of the idea is posted here: http://www.antiworksheets.com
At this point, anyone who is interested in being part of the conversation about what this site might become is welcome to join us. Just reply privately to me with your email address and I'll add you to the project Ning.
Feel free to post your thoughts and questions here, too.