Physics Education on the Interwebs

So I've been scouring the intertubes trying to vet resources for good physics content. I've found too many, I think, because I don't know what to use or how to use it. One blog that really has good info is hippocampus. Here, I found links to a few sites that run some great simulations. One I already knew about was Phet. The second was hippocampus. The third was the Physlets. They all have great stuff, but how should I use them? Too many options! HALP!.