Early each year, EDUCAUSE and the New Media Consortium produce a report on emerging technologies that are on the horizon - one year out; two to three years out; and four to five years out. This report is a valuable aggregation of new and emerging technologies that promise to impact education in the future.
For daily updates on online learning, educational technology and emerging technologies, I invite you to visit the blogs aggregated in the right column:
Online Learning Update
Educational Technology Blog