Six Degrees 2.0, a new version of its “desktop search engine” software. Six Degrees helps you find e-mails, files and contacts information. The new edition adds a browser-based user interface that ranks search results, new full text and advanced search features, and QuickFilters that capture information by category. This is a free update for all version 1.x customers. The full version comes in a free, limited-feature Lite Edition or a US$99 Personal Edition. Six Degrees 2.0 runs in Mac OS X and requires 128MB RAM (256MB recommended).