Among titles shortlisted for the annual International House Ben Warren Trust prize is onestopclil.com (now merged, since its nomination, with onestopenglish.com).
OnestopCLIL has some great resources for anyone teaching CLIL (Content and Language Integrated Learning), though it requires registration and subscription for full access to its contents. Its older sibling is one of the best sites on the internet for resources for English language teachers.
The 2,000 GBP Ben Warren prize is awarded to the author or authors of the most outstanding work in the field of language teacher education.
>> Full 2009 shortlist >> More about CLIL
Onestopclil: The Resource Bank for CLIL Teachers
You're probably already familiar with OneStopEnglish.com, the Macmillan resources site (lesson plans, worksheets, flashcards, etc…), which modestly claims to be "the world's number one resource site for English language teachers" (though you'll need to subscribe for full access, which costs €52 pa for individual membership).
OneStopEnglish has a younger sibling, one year old this month, OneStopCLIL, which also requires subscription for full access, but has sufficient free resources on it to be useful, and to tempt you (or your school) to make a small, worthwhile investment.
If you are teaching or going to be teaching CLIL [define], you may also be interested in our online CLIL course, the first edition of which starts October 19.