http://www.sitepronews.com/archives/2006/nov/20prt.html

Google custom search (http://www.google.com/coop/cse/) allows
you to quickly create your own search engine by choosing which
websites and directories you want to include in your index.

You can include only those sites or give those particular sites a
higher ranking while still including the larger Google index.

Here are some of the other benefits you will find in Google
Custom Search:

- Add hundreds or even thousands of urls to your customized
search engine.
- Exclude certain results or directories from different sites.
- Place a search box and search results on your own website.
- Customize the look and feel to match your website.
- Invite others to contribute to the search engine.
- Add refinement labels that help your users narrow their search
phrases to a particular sub-set of topics.
- Make money from relevant Adsense ads in your search results.

По мотивам создан Custom Search Engine со скромным названием All on Java Programming