My son has cancer. He can't go into day care because of unvaccinated children.: Moving piece by Stephanie Tatel, which some of the hidden side-effects on society of unvaccinated children.

Salman Khan, math master of the Internet: It's always heartening to read about advances in education. Plus, this sounds like an incredibly cool use of YouTube.

Apple recruiting team for iWork to extend into the cloud: My wild-ass-guess is that Apple is developing a \"lite\" version of iWork, that runs in a browser. Specifically, that will work in Mobile Safari on the iPhone.

Repair Time Machine after logic board changes: I used this hint to repair my sister's Time Machine backups, after Apple replaced the logic board on her year-old MacBook. A little complicated, but it works.