Professional Reading: Visual Comparison of Search Results: A Censorship Case Study

Visual Comparison of Search Results: A Censorship Case Study by Mark Meiss and Filippo Menczer has been published in First Monday (July 7, 2008). Here's the abstract: 

Understanding the qualitative differences between the sets of results from different search engines can be a difficult task. How many links must you follow from each list before you can reach a conclusion? We describe a user interface that allows users to quickly identify the most significant differences in content between two lists of Web pages. We have implemented this interface in CenSEARCHip, a system for comparing the effects of censorship policies on search engines.

Try CenSEARCHip for web and image searching. [JH]