If you work in a school that uses strict web filtering you and your students know the frustration of conducting a search only to have many of the links in your results blocked. One way to avoid this frustration is to build your own search engine using Google Custom Search. Google Custom Search allows you to specify which sites you want searched. You can specify websites that you know aren't blocked by your school's filter and sites that you judge to be reliable sources of information. The presentation below will walk you through creating a custom search engine and how you can install it in a Blogger blog.
Here are some related items that may be of interest to you:
Google Tools Tutorials
Google for Teachers
Beyond Google - Improve Your Search Results