Clive on Learning: Three tiers in the content pyramid
Clive Shepherd revises his model for e-learning tiers, adding a bottom level of social learning technology to the tiers of rapid development and high-end e-learning. High-end e-learning is a top-down model; social learning is bottom up. He makes good points about these tiers serving different purposes; they compliment each other depending on the needs of a particular situation.
Professional designers should not feel threatened by this proliferation of content created by enthusiastic amateurs - the more experience people have with creating content for themselves, the more they will appreciate the skills the professionals bring to bear.