This pipe monitors many of the top blogs (as defined by Technorati) for the keywords you're interested in. These are all high volume blogs and span the gamut from right to left and tends to be heavy on geek-tech topics.
The search terms are OR'ed, which means that instances of all search terms you enter will be found.
This works best if you enter a substring, but be careful of making your string too short or you'll get too many false positives. For example, if you're looking for posts on bicycling, using 'cycl' will result in posts about recycling and budget cycles. I search for "bicycl" to find posts about bicycles, bicyclists, and bicycling.
Provided by www.cyclelicio.us. Please comment if you find this tool useful.
Pipe Web Address: http://pipes.yahoo.com/pipes/pipe.info?_id=6GVYfd7F2xGjAcsvFG_cUw