Source:

Who is the author?
What are his/her credentials?
Is he/she qualified to write about this topic?
Can you defend this source to your teacher?

Bias/Purpose:

Who is the intended audience?
Have you ever heard of the organization?
Is the page associated with an institution or company?
What is the purpose of the page?

Content:

Are there spelling or
grammatical errors?
Does the information
appear to be accurate?
Is it truly relevant to your needs?

Currency:

When was the information on this page published?
When was it last updated?
Does your information need to be current?

URLS

You can use the end of a domain name to help you judge the validity of the information and the potential bias of a website.

.com—commercial site
.gov—U.S. government site
.org—organization, often non-profit
.edu—school or university
.mil—U.S. military site                                  
.net—networked service provider

- personal site (Be suspicious of personal sites)