CNN Newsroom and Worldview
CNN Newsroom is a well-structured daily educational feature based on a 30-minute news segment broadcast every day on cable and satellite. Schools which register with CNN Newsroom (free) are licensed to use recordings of the segment in class. The website contains a full transcript of the segment along with lesson materials and ideas on how to exploit the news segment in class.

SchoolWorld Internet Education
An excellent international website for teachers looking to get their classes involved in internet-based projects. There is also lots of advice and support for teachers.

PIZZAZ!
This website is not very elegant but includes lots of great ideas for teaching poetry and fiction-writing in class. There are also detailed lesson plans and handouts that you can easily copy.

Kent's ESL Wonderland
A garish website with some excellent advice, lesson plans and links, focused primarily on listening skills.

Theme-based Pages for ESL
Links to selected websites on contemporary and cultural issues, history and culture, holidays and technology. Part of Pizzaz! (see above), but useful for more than just writing classes.