Build a Transparency Search Engine - Sunlight Foundation

Google Custom Search is a simple service that lets you create your own search engine based on links that you choose. This is incredibly useful if you regularly need to search through a defined list of sites and want to exclude outside sources. Within a municipality you could quickly create a search that includes the municipal web site and its supporting web sites like ordinances, zoning, state regulation, property appraisal, etc. It is also a great way to make a specialized repository available by only presenting a basic browsing interface and let Google do the rest.

For an example see http://sunlightfoundation.com/blog/2011/03/03/transparency-tools-transparency-search-engine/