It's one thing to gather academic information about methamphetamine, but you would also like to sample what "ordinary" people say about it and its effects on teeth. Find some blogs where people write about their personal experiences. On your Word document, copy a quotation from one of the blogs and give the URL and the date.
Blog is short for "Web log" -- a place on the Web where you can write and post, often in a form like a diary. Estimates are that there are 70 million or so blogs, and more everyday. Some blogs are pretty influential and famous, e.g., political blogs, but most are not. Because blogs can be written by anyone, their quality varies all over the map. You wouldn't want to trust a "fact" you picked up from a blog. But, they can offer valuable information. For example, in this instance, you'd like to see what some "ordinary" people say about the effect that meth use has on teeth.