SweetSearch is a Search Engine for Students.

From the site:

"It searches only the 35,000 Web sites that our staff of research experts and librarians and teachers have evaluated and approved when creating the content on findingDulcinea. We constantly evaluate our search results and "fine-tune" them, by increasing the ranking of Web sites from organizations such as the Library of Congress, the Smithsonian, PBS and university Web sites.

SweetSearch helps students find outstanding information, faster. It enables them to determine the most relevant results from a list of credible resources, and makes it much easier for them to find primary sources. We exclude not only the spam sites that many students could spot, but also the marginal sites that read well and authoritatively, but lack academic or journalistic rigor. As importantly, the very best Web sites that appear on the first page of SweetSearch results are often buried on other search engines."

Also offered are:

SweetSearch4Me is our search engine for emerging learners.

SweetSearch2Day is where students Learn Something New Every Day.

SweetSearch for School Librarians for content that helps students use the Web effectively.

SweetSites for teachers and students, organized by subject and academic level.

SweetSearch Biographies for profiles of 1,000+ significant people.

SweetSearch Social Studies for our best social studies content.

Ten Steps to Better Web Research

And they offer a Widget