Authority:

• Who sponsors the information source? Is this a well-known or respected source?
• Who is the author? Is an author listed? Is contact info provided for the author?
• Who is the publisher?
• What credentials / level of expertise can you find?

Sources:

• Does the source provide in-text citations?
• Are references provided?
• Are you given leads to further reading?

Purpose/ Audience:

• Is the information there to
  • Sell you something?
  • Educate?
  • Persuade?
• Who is the intended audience?
  • Professionals?
  • Consumers?
• If professional, what kind of information is it?
  • research?
  • literature review?
  • a case study?
  • continuing education?
  • something else?

Evenness:

• Is the information free of bias?
• How can you tell if it's accurate or reliable?
• Is the information from a peer-reviewed publication?
• Is it a blind peer review?

Coverage:

• Is the information in depth and comprehensive?
• Is the info introductory?
• Is the info practical?
• Is there advertising? Does this influence information found in the source?
• Is it a research study?

Timeliness:

• Is this current information?
• Current enough for your field and needs?
• Is it revised/updated info?