Current - when was the page written or updated? Is the info current enough for your topic?
Relevant - is the information presented on the page relevant to your paper? Is the information within the scope of your coverage?
Author - who wrote the page? Is there eveidence that the author or oraganization is an expert on this subject?
Point of View - is this info fact, opinion, propaganda? Is there a bias? Is the purpose to inform, sell, entertain, persuade?
This short tutorial from the Purdue University Libraries will reinforce the ability to evaluate sources that was introduced in the Searchpath tutorial.