While waiting for a batch job to complete I tried a little ego surfing this evening. Searching for the name of my Perl module "XML::RSS::Tools" scored over 1100 hits, ten times as many hits for my own name!
Obvioulsy most of the module's hits come from CPAN and it's many mirrors, and there were a few stray hits, but I was surprised into how many other places the module had leaked all of it's own accord.