Phil Bradley search engine expert put out a list of search engines with special features, which includes AllPlus in two different categories: "Visual results search engine" (for using a cluster graph) and "Blended results" (for clusters, web results, news, images, video).

About AllPlus.com:

The allplus.com beta test demonstration site allows users to query all major Web content sources, including Google, Yahoo and Ask.com Web pages, News, Images, Videos and Blogs. The results are compared and ranked and presented to the user in an intuitive and clearly organized way.

We have added Facebook 'Like' feature to HealthMash results. Now you can see what your friends tagged as important, useful or interesting.