Onestopenglish

Onestopenglish is a comprehensive paysite dedicated to English teaching materials.

It also has monthly free news-based lessons from The Guardian and these are different from the monthly free lessons provided at the Guardian's own site. Paying subscribers get weekly lessons and a host of other activities. All documents are in PDF format.

Onestop blogs
It also runs a section "onestopblogs" with includes a news ticker of the most popular TEFL blogs at the moment.