I first started using MoveableType’s built in search for users to search my site. Then it broke.
Anu told me to use Atomz.com as their search was free. They have some interesting reporting tools, and while it does help me focus the writing of my blog content based on what people are looking for, it wasn’t that beneficial overall. Not only was the crawling of my site a manual process that I had to do, but they had a limit on the number of pages that I was allowed to have their product crawl unless I was a paying member. They then started inserting ads in my search results, but didn’t pay me to host their ads.
Google’s Adsense for search also allows you to maximize your earnings by providing the Google search engine to search your site, but you can customize the appearence of the results, have the google search engine interface be on your page, and utilize adsense in the search results. It appears Google has just as good, or better search query reporting tools compared to Atomz.com.
If you experience any problems, let me know; I believe using Google’s search engine will improve the searching experience on my site.