The UK based e-Learning Centre has produced an excellent series of short articles in the area of e-learning. Covering a variety of e-learning topics, this resource provides a clear introduction into areas such as 'Blogging for learning', 'Games and simulations', and 'e-Learning in Higher Education', whilst also providing links to other key resources in these topic areas.
Regularly updated, The e-Learning Centre's Guide to e-Learning comes highly recommended.