AJAX and search engines
Most of the traffic a site like ours could gather comes from only little advertising. The search engines, mainly Google, are the main source of our visitors.
Now the fancy AJAX stuff (like you know from Gmail and all the other new colorful sites) is very nice for the user, but a horror to spider for search engines.
If you put a lot of functionality and content behind AJAX layouts, you should make sure, that this content has some permanent URLs which can be found by Google & Co.
A good help can be the SiteMap project from Google to register certain URLs which otherwise might be ignored. Just remember: search engines do not understand Javascript!
