While all websites will have some kind of navigation in place (menu, tabs, etc.) to help you find the information on their various pages, searching by keyword is almost always quicker.
Luckily, many websites will have a site search box - usually found in the upper right corner. Here is an example of a site search box on just one site (click to view larger).
Type a keyword or two, and click the search button or icon. The results that you see will be pages or documents on the site's domain (in our example: onlinelearningconsortium.org) that contained the word you searched for.