This page has some of my top picks. I think these selected sites are packed with good resources. I believe you will find these sites the most useful in general.
1) http://www.superkids.com/
This site is a very good one for teachers, parents, and students to check out. Games, ideas, resources, lesson plans, reviews...the list goes on and on with this site. A great site to check out.
2) http://atozteacherstuff.com/
A great site for teachers created by teachers. This site has many lesson plans and ideas, along with other great and useful resources.
3) http://www.sciseek.com/
This science site is loaded with ideas and resources for teaching any science subject.
4) http://teachers.net/lessons/
Need lesson plans? If so, this is the place. This site have lesson plans in every subject. These lessons are created and submitted by other teachers.
5) http://www.gourmetcurriculumpress.com/
More lesson plans and ideas in all subjects.
6) http://www.enchantedlearning.com/Home.html
Ideas, resources, and lesson plans galore located here. All subjects and ages represented on this site, check it out.
7) http://www.kiddynetwork.com.sg/
This site is great for everyone. Teachers, parents, and students of all ages will all benefit from this site. Fun games, activities, and lesson plans can be found on this site for a variety of subjects. Also links to other great sites found here
8) http://www.funbrain.com
This site is another goody for teachers, parents, and students. Fun games, activities, ideas, and lesson plans found here.
9) http://www.lessonplansearch.com/
This site is loaded with lesson plans and ideas. Lesson plans for all subjects and ages.
10) http://www.aaamath.com/
This is a great math page. Offers ideas to teach all math subjects. Go check it out!
11) http://www.mathgoodies.com/
This site is a great one to check out. Many free educational resources are available including lesson plans and ideas, worksheets, puzzles and much more. A great site to check out.
12) http://www.englishday.com/
A site that helps with the teaching of english. Word searches, crosswords, word hunts and much more found here.
13) http://www.teacherweb.com/
A GREAT site! Allows teachers to put up a web site for their classroom and class assignments. Allows parents and students to view these sites.
14) http://www.coolmath.com/
A great site for everyone, teachers, parents, and students. Contains mostly math-based ideas, but also has ideas for other subjects.