For political stuff I prefer
www.factcheck.org and along with snopes I liked urbanlegend.com but it seems to have changed to
http://urbanlegends.about.com/ and it seems more cutesy than helpful.
I try my best not to forward or share anything that isn't either opinion or something I'm pretty confident is accurate (which isn't too often). The one exception there is the article that says 6% of Syrian refugees want to come to the US. So you can simmadonna about Syrians taking over and destroying our pristine awesomeness. Because of the amount and the sources (Washington Post being one) I am assuming it's accurate without double checking. They want to come here as their last resort, or possibly if they already have family here. Otherwise, no, there are no razorblades in your Halloween candy or AIDS in the ball pit at McDonalds.