Tips to keep your website from being classified the worst ever!

Backgrounds and Navigation:
An easy to use navigation structure is essential to any well designed website! Important information should never be more than 2 clicks away.
Keep backgrounds simple. White or light colors usually work best. Your background should not compete with the content of the page for the users attention. If you would like to use a background picture, select a picture that uses muted colors or format your picture as a watermark. Select text color which will contrast well with the background picture.
Excessive Annoyances:
Constantly running animations can be distracting when used excessively. There should be no more than one animated object in your view at any time. Also in this category are excessive, large, flashing and obnoxious advertisements.
Excessive Advertisements: Aggressive pop ups, banners, flash ads and other intrusive ads annoy your visitors, make your site difficult to use and bury your message in a sea of clutter.
Unnecessary use of technology:
Usually, it is best to skip the tunes, but if you must add music, be sure you provide a way for them to turn it off!
Unnecessary use of technology: Splash pages which require you sit through a lond download and don't offer a 'skip intro' option. Especially torturous on a dial-up connection. Avoid excessive or exclusive use of java script menus.
Do not place fake error messages anywhere on your website. This is simply used to trick new computer users into clicking on an ad.
Proper ways to keep your content:
Be careful to use proper spelling and grammar! Bad spelling and grammar causes your website to look like it was done by an amateur.
Enclosing blocks of text within borders breaks up the flow of the page and causes unnecessary distractions.
If your website contains timely information, you need to keep it updated regularly, or remove the old stuff.
Pictures which don't load properly could be due to improper uploading of files, improper characters in filenames or unusual formats or file extensions
Other Browsers and Screen Resolustions:
Internet Explorer may be the most widely used browser, but it is not the only one. Others include Mozilla Firefox, Safari and Opera to name a few. Different browsers may display your web page very differently. Check your website in as many different browsers as possible. Check it in both 800 x 600 and 1024 x 768 screen resolutions. Using tables may help control the layout. Avoid components which only render properly in specific browsers.
Proper Hyperlink usage
Orphan pages provide no way back to the originating page. These can cause users to get "stuck."
Hyperlinks that don't work is another problem with poorly designed websites. Click through all your links often and update them regularly.
Hyperlinks of unusual colors can cause confusion for new users.
Hyperlinks which are overly long and don't tell the user where it goes or what it's about
Hyperlinks that lead to the wrong place