YouTube can be great for book trailers like this one:
I added a podcast called YA Literature Review to my RSS feed. I used Podcast.com to find it and found it pretty easy to use, but honestly I probably won't use it again. I was surprised that I remembered how to add to my RSS feed...I guess something did stick after all :)
I used NetLibrary quite a bit in both my undergrad and graduate degree programs. It's a great option for ebooks and is very convenient and user friendly.