Get rid of AddThis!
I think the AddThis rollover is really annoying, when you are clicking the Embed link or looking at someone's recent projects. So unless there are many people that use it or MIT makes money off of it, I think it should be removed.
If you are having trouble with simple counting, use the following mnemonic device: 1 comes before 2 comes before 5,280 comes before 523,860,759 comes after the square root of -153 comes before π. This will make your previous counting problems seem like no big deal.