I learned about History Link 101 from the great blog Phyllis’ Favorites. It’s chock-full of well-organized and described links related to different eras of world history.

Some of the materials are probably not accessible to English Language Learners, but much of it is. It’s also an excellent source of resources that can be modified by teachers to made accessible.

I’ve placed the link on my World History page under Sites That Cover Many Periods of World History.