ESL Resource Center - useful for ESL students and teachers.

English Club - another great website with resources for both students and teachers of English.

iteslj.org - Good materials for teachers looking for advice and tips in teaching English

The EFL Playhouse - If you teach children, this site has some good ideas for lessons.

123 Listening.com - This is a great site if you like to use pictures when teaching students. Create your own materials on this website and print them out. Good stuff here!

ESL Base - Learn what you need to do in order to find a job teaching English as a foreign language. It's a good way to see the world.

Lesson Writer - Create comprehensive literacy lesson plans and student materials from any content in minutes. This is very useful for creating lesson plans quickly and professionally. Five stars!

chompchomp - Here you'll find some good teaching materials, including powerpoint presentations that you can use in class with a projector.

ABCTeach - Some useful ESL teaching materials and games are on this site.

One Stop English - There's a nice collection of resources for ESL teachers here, but a lot of it requires a subscription. You can find most of this stuff on the interent for free, but if it saves you time, go for it.

4 Teachers - 4Teachers.org works to help you integrate technology into your classroom by offering online tools and resources.

Online Teaching Degree - Directory of accredited online teacher degree programs from popular colleges and universities. 

ESL Teachers Board: Free teaching materials, ESL jobs and resumes.