Jane Hart is remarkable for her sharing online; check out her Top Tools for Learning.
She has set up a presentation covering the basics of social learning using the web:
And, as well, she has set up a Social Learning Network on Elgg, which I plan on participating in: http://www.c4lpt.net/
Having had experience with both Jane Hart’s work, and with Elgg, I recommend you check it out!
Learning Living 