PBS brings you a video series that will give you a crash course in learning Astronomy.
Crash Course Astronomy
Nature Outlook: The Dark Universe
Get full, free access to Nature Outlook's supplement on Dark Matter.
IceCube Neutrino Observatory
CoolSite- Check out the IceCube Neutrino Observatory located in the South Pole on it's quest to find Dark Matter and neutrinos in the universe.
Particle Adventure
Cool Site - Learn all about the fundamentals of matter and forces with Particle Adventure!