This guide offers tips for evaluating the quality of content on the Web. The Web is a rich environment of Web pages, blogs, wikis, social networking sites, free research services, media types and more. It can be a challenge to figure out which content to trust. This guide will help you to identify the type of site you are visiting and to evaluate its content.

A blog is a Web‐based journal entry platform that can accept reader comments. A wiki is a publishing platform on which many people can contribute new content and revise existing content. 

These are Web sites that provide research materials or links to these materials. 

Multimedia encompasses non‐textual presentations such as audio, video, and Flash formats. 

Open Access repositories store copies of scholarly and research materials that are available for public use.

Social bookmarks are links saved on Web sites that allow users to annotate, tag, and share them with other users.

Social networking sites are online communities in which members can interact in a number of ways. 

Web sites are a unified collection of pages that run the gamut from educating to informing to selling to persuading, and may combine purposes. The content generally originates from the Web site owner, be it an individual, organization, company, or government entity; however, RSS feeds may introduce imported content.