I had been wondering about the same problem for the past two days. Thinking about starting this at PerlMonks, could we maybe have a big module poll section, in which monks would mark the modules they've used, from the total of modules available at CPAN? This could be useful in many ways:

1. Would allow us to find out about popular modules we haven't used.
2. Would be a good aid for the people in charge of selecting modules for the standard distribution.
3. Could be a good indicator of the robustness of a given module, since more users usually mean more feeedback for developers and more bugs fixed.

On the downside number 3 could become a band wagon maker, discouraging use of new and potentially better modules.

We could also have a PerlMonks node for each CPAN module, for people to comment on their usage, much like in the Q&A section. What do you guys think?

Greg