Students can make authentic contributions to the World Wide Web (WWW) and learn critical evaluation skills by publishing reviews of WWW resources. A project which served as a pilot study was implemented where high school students wrote and published reviews of resources they used as part of an inquiry-based science curriculum. Students were supported in writing reviews by specialized software and by in-class modeling of the review process. Findings supported the idea that high school students could critically evaluate sources and produce written analyses that synthesized their evaluations. Findings suggest, however, that student products were inconsistent and the project was not successful in helping students recognize separate types of critical evaluation (e.g. evaluation of source versus analysis of evidence). Future developments in both software and instructional support of WWW reviews are discussed. Reviews published in this project are available online. (Contains seven figures and eight references; a Likert survey sample form is appended.) (Author/CR)