Try to make visiting your Web site a personalized experience by adding the option for users (members) to set preferences and maybe even create a personalized start page, or to be able to bookmark certain areas on your site for later review. Again, whether you can do this depends on your site's programming language and how much time and money it will consume.
Personalizing your site in this way is worth your time and effort only if you have both a large number of members or regular visitors and a lot of content. If all of your content can be easily reached and everything on your Web site can be found with a couple of clicks, personalized pages and bookmarks just aren't necessary.
Some final advice: Don't overdo it! Focus on the actual content before following any of the other tips.