The Supplemental Results Index is still very much in existence, still very much enforcing Google’s Web Apartheid, and still very much making life difficult for small Web site operators who cannot possibly accumulate, attract, or construct the PageRank they need to rank well for relatively uncompetitive queries to which their sites are more relevant than the spammers’ sites (who basically just build PageRank through volume), the large commercial sites (who basically just build PageRank through volume), the huge forum communities (who basically just build PageRank through volume), and other large content sites (who basically just build PageRank through volume).
Google’s supplemental index is still biting your ass | SEO Theory - SEO Theory and Analysis Blog
I’d say let’s level the playing ground: small operators need to build their own volume to compete. Don’t let Mahalo and Wordpress and Shopping.com just take all the Google traffic away from your site and cry about how they are evil spammers, that won’t change anything. Fight fire with fire, make your own tag pages, stretch your own content to fit the Google algorithm.
BTW send me email if you want to beta test the community tool i’m working on that has this functionality built in ;)