Per this from the summary above:

... But Perl is still popular, see http://www.tiobe.com/tpci.htm...

I got buried this last week, and it's prevented me from making a detailed post to Perlmonks, but I had thought it might be interesting to create a page with "language usage indicators" generated from various sources around the Internet. I created a miniature framework (in Perl!) to produce the index, which I've dubbed LUI. You can view the first blush of LUI at

lui.arbingersys.com

Instead of trying to interpret the data, LUI just presents a few (hopefully) useful metrics for considering the question of language "popularity". (I've drawn some of my own conclusions already... for one, don't discount C/C++)

LUI needs to get better, and there are a few metrics missing -- for instance I want to add koders.com, as well as sourceforge -- but I think the general idea is useful, and it definitely has some interesting results.