What are your top 5 selections in each of these categories? Content to include educationally useful sites like oli.cmu.edu, wikipedia, etc. Tools to cover things like lms, cms, authoring, visualisation, etc.
I suggest some works which investigate the trends of e-learning and deserved to be paid attention.
Hawang, G. J., Tsai, C. C. 2011. Research trends in mobile and ubiquitous learning: a review of publications in selected journals from 2001 to 2010. British Journal of Educational Technology 42 (4), 65-70.
Hwang G. J., Tsai, C. C. 2011. Research trends in mobile and ubiquitous learning: a review of publications in selected journals from 2001 to 2010. British Journal of Educational Technology 42 (4), 65-70.