One of the web sites to which I subscribe is the Centre for Learning & Performance Technologies by Jane Hart. She has accumulated an outstanding list of tools and resources which have been nominated by “learning professionals.” (HERE is the top 10 list I submitted.) There is a very helpful E-Learning Handbook, and she has just released “25 TOOLS: PROFESSIONAL DEVELOPMENT PROGRAMME.” You need a free registration to get into the program(me), but what makes it particularly valuable is that it deals with free tools and gives practical tasks for learning how to use them. Highly recommended.
Web 2.0 Tools for Teaching and Learning