Topic: New Ruby Projects Outpace PHP, Python, Perl
This is an old blog post I just came across: http://www.oreillynet.com/ruby/blog/200 s_for.html
While PHP kicks Ruby's butt in terms of lines of code committed to opensource projects per year, new Ruby projects are on the rise, and blowing everything else out of the water. And the LOC bit can be attributed to Ruby (and perhaps Rails) being more efficient.
Stats aren't perfect, and can be read in a number of ways, of course... but interesting nonetheless.