Jakob Nielsen's Alertbox: Top Ten Mistakes in Web Design

Usability is a definite interest of mine, and something I'm passionate about including in any web project. Jakob says this year "many usability atrocities are less common than they used to be" and published his 10 top mistakes...

Keeping in mind that Jakob is an academic on usability and in reality usability experts can never be as good as the user (and hence real user testing is an important phase), he makes some interesting and important points. Search - does anyone not use Google? (Even Sekamo (a local version made through google co-op) counts as Google), PDF - is an interessting one... "Users hate coming across a PDF file while browsing, because it breaks their flow". Good point, although publishers (and product pushers) want to 'leave behind' something for you to refer to. Hmm, worth keeping in mind. The rest, take a look on your own, I can't see anything glaring but definitely worth the scan.

Added 10 Jan: Keeping in mind that there are no hard rules, there are some exceptions to these 'mistakes', it's worth also seeing Vincent Flanders Biggest Mistakes in Web Design 1995-2015