FeedDemon's "search channels" are the fastest way to find news items and blogs of interest. A search channel is a dynamic feed which uses an online search service to look for items containing specific keywords. Feedster and DayPop searches are built into FeedDemon, and fans of Blogdigger will be happy to hear that Blogdigger support is very easy to add.
Want more? Oskar van Rijswijk provides additional tips on customizing FeedDemon search channels.