I don't consider myself a grammar nazi, but it really, really bugs me when people can't seem to distinguish between your vs. you're, then vs. than, they're vs. their vs. there, and so forth. Somehow, these errors almost seem contagious on the internet, don't they? ;-) Matthew Baldwin has come up with a clever solution for this problem. His proposal, Internet Access CAPTCHAS, is designed to keep certain grammatically-challenged people off the web: Site administrators use CAPTCHAs to prevent automated scripts from performing certain functions, such as creating an account, sending email to a distribution list, or participating in a discussion thread. That's fine, as far as it goes. But, frankly, I'd also like to see certain people on the Internet prevented from doing certain things. You know,...