In germany a Stackoverflow-like site was created, that is very, very similar to Stackoverflow in the mechanics of reputation and badges etc. That is so similar, that I think they could use the same software. Did you sell it to them? Or are they using a very similar clone-software? The Community I have in mind is Codekicker.
It's a shame that they don't even mention where they have the idea from. Wouldn't make the site any worse to admit that the idea comes from Stack Overflow—and as it seems, they copied basically everything (except that you only need 250 rep for editing other people's answers). The only results for
stack overflow site:codekicker.de
in Google (this includes the blog) is a something about a "real" stack overflow, and this question from yesterday. Here's my translation for the non-Germans:
Why would you clone stackoverflow.com so blatantly?
— without mentioning the one who came up with your "features" anywhere with a "thank you"...
Take a look at cnprog.com, I hope you're going to share their fate :-)
This is the answer by one of the developers:
Thank you for taking part* in our project ;-) Feel free to express your opinion exhaustively on our feedback site**. You can reach me by mail or phone throughout this day.
* you could also translate this as "Thank you for your condolences concerning our project", this ambiguity is likely intentional.
** They're acually using uservoice as their feedback site. As an answer to the SO similarity question, the admin basically claims that they see themselves as an addition to SO for German speaking users. Quote:
As far as site design and features go, we hope to even do some things better than our [guides / idols]. Do you like the home page?
Nothing wrong with what they're doing, but I don't get why they don't really acknowledge SO publicly.
There seems to be some crossover as well. See these two questions:
EDIT: on further examination of the posts, I guess you would know that ;)