This is an interesting comparison, but it is most likely just a high overlap between their userbases - people that use github also use stackoverflow, and vice versa. This also doesn't include the number of people programming with a language in a corporate environment whose work is not public nor on external servers.
Megan Squire posted in a comment this link to a collection of multiple source code repository websites datasets, although it is only open source projects: http://code.google.com/p/flossmole/downloads/list
Interesting. I'd like to add some options like that for http://langpop.com . Some charts that let you look at jobs vs search engine hits or books vs projects, that kind of thing.
I wish I could find a way to make a bit more money from it than the ads provide, though.
[+] [-] timrobinson|15 years ago|reply
- I always wondered why there were so many Delphi questions on Stack Overflow, despite seeing very little Delphi activity elsewhere
- F# developers don't ask many questions
[+] [-] agconway|15 years ago|reply
[+] [-] fogus|15 years ago|reply
So that might explain why the Delphi questions have aggregated on SO.
[+] [-] ricaurte|15 years ago|reply
Megan Squire posted in a comment this link to a collection of multiple source code repository websites datasets, although it is only open source projects: http://code.google.com/p/flossmole/downloads/list
[+] [-] davidw|15 years ago|reply
I wish I could find a way to make a bit more money from it than the ads provide, though.
[+] [-] Flenser|15 years ago|reply