Seven tricks that Web users don't know

Seven tricks that Web users don't know:

Ignorance is about things, not people
1. Logos that link to the home page
2. Concepts of security vs. privacy
3. Rollover menus
4. Arrow keys and drop-down lists
5. Navigation by hacking URLs
6. Knowledge of browser controls
7. Second browser windows
The geographic effect
Change sites, not user behavior

Great checklist of pitfalls to avoid when creating websites that real people use (ie. 99% of them). Found via Asa's blog