Search the OEDb Top 100 Education Blogs, with the ability to truncate the results. A clone of Raj Dash's Zen Habits mashup. Note that edubloggers don't often talk about the same thing. Some of the searches come up empty.
Aggregates feeds in an OPML file into a master pipe, where all items from RSS or Atom feeds are sorted correctly by date. This is accomplished by creating canonical date attributes using Rename and Regex.