Possibly inspired by Al Gore, Apple announces a new iTunes U app, textbooks for iBooks 2.0, and iBooks Author, so you can create your own interactive books.
Horizon asks "What is reality?" -- youtube for links for those outside the UK: 1, 2, 3, 4. It's a hard question. To help you answer it, Stanford has a set of free courses available on line by Leonard Susskind: General Relativity, Cosmology, New Revolutions in Particle Physics, Quantum Entanglement, Special Relativity, Classical Mechanics, Statistical Mechanics, The Standard Model. (Each link is to lecture 1 of a full college course of a dozen or so lectures.) If you need help with the math, the Khan Academy should help get you up to speed.
The Perimeter Institute is a center for theoretical physics in Waterloo, Canada. Among other outreach activities, they host a series of public lectures on a variety of physics related topics. [more inside]