An easy way to integrate search into your personal web site is to add your favorite engine's search box to its pages.
Search engines Google, MSN and Yahoo! index your public web site on a regular basis. They also offer a free search box you can add to your web pages. Choose your favorite engine, and add the prescribed HTML to your web pages or weblog template to let your readers search your site. The upside is it's quick and easy; the downside is the search results are at the whim of the engine you choose.
Add Google search to your site
Add MSN search to your site
Add Yahoo! Search to your site