Eli Pariser of the progressive organization MoveOn says the Internet is hiding things from us, and we don't even know it. In this TED Talk he calls out Facb, Gog. and other corporations who are transforming the Internet to suit their corporate interests.
I have been concerned with this shit of late. My search results are increasingly predictable, and my Facebook feed is limited to about 6 people. I'm going to try some different search engines, if anyone has any suggestions please leave them in the comments.