Thank you for using Yahoo Pipes! To help focus our efforts on core Yahoo product experiences, users will no longer be able to create new Pipes starting August 30th 2015. The service will be put in read-only mode until we will discontinue Yahoo Pipes on September 30th 2015. You can find more details here.
This tool establishes a persistent search of Yahoo! Blogs for the entered terms, and then consolidates the results into a single RSS feed, which updates regularly. It also allows for blocking of multiple terms. Delimit terms with semicolons.