From Smashing Magazine: 9 Common Usability Mistakes in Web Design.
Some great tips.
For #1, I definitely appreciate web sites that use actual decent clickable areas for page navigation. These aren’t too bad for example (from MSDN):
But there’s still too many web sites like this:
1 2 3 4 5 6 7 8 9 10 … 31 32
The clickable area for each page is no wider than the width of the character! Don’t forget that not everyone has the mouse dexterity of a 14 year-old avid game player! :)