Random SEO success
Then I forgot about them.
Now, I get most of my traffic on these conversion tools. As of recently, if you search millimeters to inches on Yahoo!, my site is #1. Because of this, I've gotten a whack of traffic just on this one page.
I wonder what it is about that page that Yahoo! considers so special. There aren't even any sites that link to it. It's really some kind of SEO marvel.