Triangulation is a useful tool for simple analysis such as cleaning up duplicate items in a list. The tool can also be used as part of a larger project such as cross spherical analysis. Here the tool is used to analyse and output shared and specific items per list(s). One possible visual output is a venn diagram, which requires an extra step in Illustrator. In the sample project Indexing Issues for the Blogosphere three tag clouds are analyzed for shared and specific urls.