In Part One and Part Two of this blog, I looked at Beagle and its alternative interfaces (Peagle, Yabi and Peagle). In this last part, I want to take a look at three other search engines as viable replacements for Beagle: Tracker, Recoll, Strigi, and Deskbar, an applet written in Python, which has some very handy scripts written for it and, which can extend its functionality well beyond the immediate desktop itself.