I found “gold” while reading a recent post in the Readable Blog.
I learned about the online support sites for three Cambridge EFL/ESL textbook series — Interchange, Touchstone, and Connect.
There are a ton of excellent activities on these sites, I especially like the What Do You Hear? and What Do You See? games (and there are probably well over one hundred of these alone).
I’m actually still in the process of placing the links to these great sites on my webpages. Some will go on the English Themes for Beginners under Favorite Sites while others will go on my English For Beginners page under Vocabulary.