Kebberfegg is "a tool to help you generate large sets of keyword-based RSS feeds at one time." What it does is quite simple, and in that lies its utility and cleverness. You enter a list of tags -- user-supplied keywords to describe an RSS feed -- and select one or more subject areas (Medical, News and News Search Engines, Technology, Web Search Engines, etc.). Kebberfegg translates those tags into URLs that work at all the various sites that employ tags (i.e., Technorati, Del.icio.us, Google Blog Search, Daypop, etc.).

The list is either displayed either as HTML or as an OPML file. The HTML is OK for a quick review of RSS feeds that you can select from and add to your favorite aggregator -- an "Add to Yahoo!" link is provided for each feed. The OPML file is in many ways better, once you have honed your search, since you can import it directly into your aggregator of choice.

The list of sites that use some form of tagaloging is impressive in itself -- over 15!