Developer.com has posted the TIOBE Programming Community (TPC) Index as one means for determining Programming Language Popularity. Such an index is bound to be imperfect as programmers are influenced by the language they are currently using. Nonetheless, it’s interesting data.

“From the trends in these charts, you can do lots of speculation. For example, it seems that there is a trend showing a movement away from enterprise, object-oriented, statically typed languages such as Java, C++ and C#. There is more focus on the lightweight interpreted languages such as PHP and Python. Could this be related to the popularity of Extreme Programming?”