Although there are many search engines available, Google is the best known and one of the most accurate. Try the advanced search to really fine tune your results.
We all know there is a wealth of information available, whether that information comes from the Internet or the bookshelf. The problem with searching for information, and especially on the Internet, is that we don't always know where it comes from and whether or not it is worth trusting. It is important to be selective and to evaluate the information you find. Consider the source of the information.
You can use the CRAAP Test linked below to help you decide whether or not you should use the information you find for ANY source, not just for the Internet:
Here is an excellent guide from UC-Berkeley that outlines the most important factors to evaluate:
Evaluating Web Pages: Techniques to Apply and Questions to Ask
The first place to look when evaluating a website is the internet extension. They all mean something different:
.com - "commercial"
.org - "organization"
.net - "network"
.edu - "education"
.gov - "government" (US)
.mil - "military" (US)
.int - "intergovernmental"
Different countries have different extensions.
.ca - Canada
.uk - United Kingdom