Web 2.0 Effect

In regards to Richard Manus and Joshua Porter in "Web 2.0 for Designers", I must say that I have slighty felt what is known as the Web 2.0 Effect...or phenomenon. When I first started using the web there were a few main sites that I used to get specific information, but now it seems as though there endless amounts of options. Websites have started carrying a variety of information and the amount of sites has grown dramatically. Also, sites are displacing more power on the users; it was never like that before.
Personally, I keep up with all this information and web changing by sticking with the sites I have always used.I check my e-mail on Yahoo!, my news on CNN.com, and I use Facebook to stay in touch with all my friends. I use the sites I am familiar and comfortable with. It's kind of like staying with the brand of shampoo you have always used because you know it won't make your hair fall out.
I think that web writing, technologies, and design need should definitely take back some of the control that has been lost. It's nice that people are able to voice and write their own information, but it's kind of taking a toll on credibility. I feel like the option for users to comment on information is nice, but they shouldn't be able to edit it. Certain websites should be locked. It's just getting too frustrating not knowing what to believe and what can be used as a credible source.