Things you should consider to help you judge if the info you find is reliable.
It may be obvious, but be sure to read the web page to see if the information on it is on topic for your research and that it is written at a level appropriate for college research. Be wary of pages with lots of typos and spelling mistakes.
Google is great if you know how to navigate advanced search and harness the power of google scholar.
Google Scholar (Advanced Search) Finds Published Articles, Books, Conference Precedings and Reports