Google labs offers many and I mean many choices for your viewing/reading pleasure. I choose Google groups 2 and typed in my subject and found many of groups in a lot of subcategories. There are so many to choose from, it is hard to make a choice on which ones to join.
Google Music searched the web for music videos I was looking for. i.e. Nickleback's video "Animal" cannot be found on my normal Yahoo video site but Google Music searches other sites and finds the video on Youtube.com, that is very cool.