dr. mary balkun heads up the english department. she's one of many experts who worry about students who rely on one very popular site wikipedia.org. i just find it to be really helpful even though some people just say not to use it. >> wikipedia is an amazing phenomenon. people all over the world constantly update its content. but it's no4iable. >> a wiki by its very nature can be altered by anyone coming along. you don't know who put that information up there. it could be the student sitting in the desk next to you. >> a good wikipedia entry is like a good research paper. it has a bibliography at the bottom listing sources. that's place to start looking for your real sources. you might still wind up with a website as a source. to analyze its value, start with the address. for example, the smithsonian institution's address ends in edu. for educational. >> anything that ends in edu would probably connected to a school, a college or university or some academic organization. >> a .gov address indicates a government website. that can be