Material freely available on the web (public web) varies considerably in form (websites, blogs, podcasts, etc.), function, and reliability.
The decision to use such public internet sources in your paper depends on the nature of the assignment. Check with your professor if you are unsure whether you should use internet sources in your paper.
Regardless of the type of internet source you consult, it is important to evaluate your sources to ensure that they are authoritative resources to use for your assignment (see PARCA Test under Resources).
There is a vast array of websites available on the public web. There is some authoritative information available on company and organizational websites, such as reports and government documents. However, most scholarly information is not accessible for free on the web, and you will need to make use of the databases for which the library has paid subscription fees.