An Update for Deadly Mistakes in Website Design
- Orphan pages. Memorize this: Every page in your site needs a readily seen link back to the home page. Why? Sometimes users will forward a URL to friends, who may visit and may want more information. But if the page they get is a dead end, forget it. Always put a link to “Home” on every page, and make your site logo (usually found near the top left side of the screen) link back to your home page--that will quickly solve this problem.
via The 10 Most Deadly Mistakes in Website Design | Entrepreneur.com
The rest of the points were pretty well known: disabling the back button, broken links, poor navigation, outdated information, slow site, pop ups/ new windows, and too many or clashing fonts, colours and styles.
About colours, fonts and styles - Make it readable! Contrasting, easy to read plain fonts. For a long time it was popular to have pretty looking pages in shades of light grey, beige, and so on. Pretty, but unreadable.
I would debate the point about having your name, address and so on. If you have a business you could include a business address, or mail box, whatever you choose to use.
Also, including social media links. I think they are better left at the bottom of your site, for people who have read something of your site. Otherwise, people will not read and just skip to the social media links as a short cut. Not really the order you want them to look at your site.