1. Flash = Root of all evil, my web design professor refuses to download a flash viewer on his computer and won't grade any projects that use any flash at all..its so evil if used for more then just a banner or something.
2. A lot of people don't check their links and they are dead because they forgot a letter.
3. I hate these extremely bright backgrounds on light text....so annoying..
4. Again, while I use IE mostly, I occasionally run into a problem like that with mozilla or opera..
5. I'm terrible when it comes to grammar, but on a professional website, come on...you have to do better then that.
6. Frames are evil.
7. Pop-ups and spyware! I hate having to run adaware because when I visit some music lyrics website, they have to be funny and install some stupid spyware and add 50 billion popup windows. So annoying!