From the blog post: it's more successful than StackOverflow Careers on most metrics in the UK. We run more job ads, our jobs get viewed by more developers, we

From the blog post: it's more successful than StackOverflow Careers on most metrics in the UK. We run more job ads, our jobs get viewed by more developers, we get more applications/job and we have more satisfied customers. Focusing on one country is probably a good way to compete against a global jobs board.