Ohloh shows scary decline in open-source project commits
ohloh.net
ohloh.net
We'll provide more details once transition is over (we just acquired Ohloh from Geeknet).
It's possible people are just moving away from verbose languages like C and Java and thus just needing to write less code, but I'm not sure I have enough faith in the human race to believe it.
Another theory: a huge fraction of open-source in recent years is written by programmers paid by companies to work on it. The recession has caused these programmers to be pulled off and put on projects where their time can be billed directly.
Third theory, there is more use of distributed version control "offline", which would not be detected by Ohloh.
I couldn't find any figure to back this though.
But I do remember that Ohloh used to be quite popular and I'm sure as hell that it's not anymore.
Also, there is a growing quantity of proprietary Web Apps which might have helped shift interest of many users and programmers along.
I'm not all that surprised as it has been one of my concern lately. The Open Dream might come to an end with the make-it-all-online meme.
Should add C++ and C#...ain't much of a decline.
Everything is going down.
http://www.ohloh.net/languages/compare?commit=Update&l0=html&l1=javascript&l2=php&l3=python&l4=ruby&l5=xml&l6=css&l7=-1&measure=commits