nice top-level categories. Too many doc pages can't even correctly do something that simple.

One thing I hate is fixed headers. If I'm scrolling down the page, I want to read whats on the page, not have you shove your branding down my throat while also reducing the amount of content on my screen. If your stuff is good, i'll happily scroll up and click on your stuff, but don't force it on me (this is a problem with blogs too).