www.wikipedia.org
While this site offers a lot of information on just about anything you can think of, this is not a credible source. Anyone can change the information on the page.

www.Sparknotes.com
Even though this site offers a great deal of information summarizing many books, it is a cheat site for students. Students can read the chapter summaries, plot overview, and character analysis to replace actually reading the book.

www.bookrags.com
This site is similar to SparkNotes.com. It offers study guides and essays that students can gather enough information from to ace a test.

www.youtube.com
While this can be a great resource, this site offers many videos that are not school appropriate. I don't think students should have access to YouTube at school and should not be allowed to search YouTube videos at school. (They will get distracted!) However, there are some good videos out there so I am not totally against using YouTube at school. Teachers should find an appropriate video and then show it to the students.

www.teachertube.com
I do not completely dislike this site. Many great educational videos can be found on here. My only complaint is that it is really slow and takes a long time to download videos.

www.Explorelearning.com
This website provides over 450 interactive online simulations for math and science topics. You can search for gizmos by grade and topic to find the best one for your needs. (Note: The gizmos are designed for grades 3 - 12.)

Alien Rescue
http://alienrescue.edb.utexas.edu/index.php

This hypermedia instructional program is designed for 6th grade science classrooms to teach scientific inquiry. Students take on the role of scientists and learn about our solar system and procedures scientists use to gather information. This program offers ties to other areas of the curriculum, including life science, math, and history.

http://kids.nationalgeographic.com/kids/
National Geographic has created an educational section on their website just for kids. On this site, kids can play games, watch videos, read stories, and more. Each activity provides kids with information about nature and animals.

www.starfall.com
This website is a great way to help kids learn to read. Kids can learn the alphabet, letter sounds, how to read, and practice reading with interactive games and activities. The overall theme and characters are designed for younger kids.

http://www2.scholastic.com/browse/learn.jsp
Scholastic offers interactive activities with a wide variety of subjects and topics. From Pre-K to 12th grade, there are learning opportunities here for kids of all ages. Also, Scholastic has compiled teaching resources for many of the activities so teachers can help students get the most out of each activity.