1. [Navigation] 2. [Articles]

1. Navigation

• Keep it simple (KIS) 
  
  
• Make sure your navigation is consistent from page to page. 
  
  
• Always include a small text menu at the bottom of  every page. 
  
  
• Don't design your navigation with Flash. 
  People who don't have or want the Flash plug-in, won't be able to navigate your site. In addition, search engine spiders can't read Flash, so won't be able to spider the individual pages of your site. This means the search engines will not find you!

2. Articles

http://www.wdvl.com/WebRef/Navigation/index.html