myenglishonline is a Personal Language Learning Environment (PLLE) wiki for, and I quote,Self-Directed Language Learners.
You can apply to join to receive updates and to contribute to the community. (It seems a useful model for a shared resource wiki.)
It includes many resources including pages on language learning strategies, links to tasks, etc.
The contents panel below gives a more complete overview – click on it to go to the site – and join up.