is the most useful. Compared to enjoybottledwater.org and tappening.com, it has the most useful and credible information. To begin with, tappening.com hasnt been updated since 2008, making it a pretty out of date website to cite. Especially in science, it is most important to have current information as things are being discovered every day. Science.howstuffworks.com is the most credible source in my opinion mostly becuase of its abundant supply of information and currency. The website is obviously being updated frequently since it has its own search bar in it.
The worst website out of the three would be tappening.com. This website was last updated in 2008, and some of the links dont even bring you anywhere. This shows the site has either been left alone, or just isnt kept together well.
As of reading all these atricles, I am probably more prone to drinking bottled water. Mostly because like howstuffworks.com says, water is an "8 billion dollar industry". To think that one will completely stop drinking bottled water is a pretty big statement, seeing as you aren't going to find tap everywhere. Bottled water is popular, and I have a feeling it will stay like that for a while.