I am happy to announce that I have just put the finishing touches on a Joomla!-specific search engine at resources.howtojoomla.net. HowToJoomla! Resources started as a way to easily search Joomla!-related sites that offer useful resources to the Joomla! community. Using traditional search engines to search for terms like "templates" or "components" won't turn up Joomla!-related information, but using this search engine will because it only searches sites that offer services and resources to the Joomla! community.
If you have a site that you think should be included in the list of resources, please feel free to submit your site for consideration. Not all sites will be accepted. Only sites that provide Joomla!-related services and resources to the community will be considered.