we at TAXI (my day job) launched the new equation site for One Laptop Per Child last week. We urge everybody to take a second to visit and make an equation. Then grab the embed code and post it on your blog, link it up on facebook or do the old fashioned thing and email it to somebody.
This was a tremendous effort accomplished by my co-workers Jeff and Matt. I sat idly by making HTML thank yous while these two cranked out this site under a deadline most people would fear.