Academic Research Sites for K-12

Internet Public Library (In 2011, the Librarian's Index to the Internet and The Internet Public Library merged.)
Resource Discovery Network -- UK This resource will be available until 2014. Funding was cut in 2011, and the site is currently not adding or updating resources.
Kidsclick - Subject Directory for K-6
Yahooligans -- Subject Directory (now known as Yahoo! Kids)
World Book Encyclopedia
EBSCO Host Magazine Database
American Memory
Trackstar -- Create a list of links to excellent sites and content.

Academic Higher Education Search Sites and Databases

List of Academic Databases

Joyce on kids and searching and evaluating from Joyce Valenza on Vimeo.

Google Lessons in searching:
Search Engine Education by Google

Search Engines

Tag Galaxy - search images
Gooru Academic Search Engine
Only Two Clicks
Sweet Search
Search Cube
Awesome Library

Blogs and Newsletters

Joyce Valenza's Never Ending Search Blog
Gary Price Research Shelf Newsletter Subscription (free)

Read Write Think
Great Resources for Lesson Planning
Using Wikipedia in the Classroom
Wikipedia Lessons
Ohio Resource Center