Before using an online source for your paper, be sure to evaluate it.
Does it meet the qualifications of a quality, scholarly resource?

Check for:

Currency: the timeliness of the information

• When was the information published or posted?
• Has the information been revised or updated?
• Is the information current or out-of date for your topic?
• Are the links functional?

Relevance: the importance of the information for your needs

• Who is the intended audience?
• Is the information at an appropriate level (i.e. not too elementary or advanced for your needs)?
• Have you looked at a variety of sources before determining this is one you will use?
• Would you be comfortable using this source for a research paper?

Authority: the source of the information

• Who is the author/publisher/source/sponsor?
• Are the author's credentials or organizational affiliations given?
• What are the author's credentials or organizational affiliations given?
• What are the author's qualifications to write on the topic?
• Is there contact information, such as a publisher or e-mail address?
• Does the URL reveal anything about the author or source?
  examples: .com, .edu, .gov, .org, or .net

Accuracy: the reliability, truthfulness, and correctness of the content

• Where does the information come from?
• Is the information supported by evidence?
• Has the information been reviewed or refereed?
• Can you verify any of the information in another source?
• Does the language or tone seem biased and free of emotion?
• Are there spelling, grammar, or other typographical errors?

Purpose: the reason the information exists

• What is the purpose of the information? to inform? teach? sell? entertain? persuade?
• Do the authors/sponsors make their intentions or purpose clear?
• Is the information fact? opinion? 
• Does the point of view appear objective and impartial?
• Are there political, ideological, cultural, religious, institutional, or personal biases?