Googling more sophisticatedly:
Because anyone can add or change content, there is an inherent lack of reliability and stability to Wikipedia. Authors of articles may not necessarily be experts on the topics they write about, leaving a lot of room for errors, misinformation, and bias.
The founder of Wikipedia, Jimmy Wales, has recently stressed that Wikipedia may not be suitable for academic uses, saying, "It is pretty good, but you have to be careful with it. It's good enough knowledge, depending on what your purpose is."
How might I use Wikipedia for this research assignment?
Background information: When writing about a topic you're not familiar with, Wikipedia is useful for background, overviews, important terms and concepts.
More sources: All Wikipedia entries end with bibliographies of additional sources. These usually include more authoritative sources like books and journal articles that you can find in the library or online. This can be a great way to start identifying sources for your paper.