I wish HN users would submit the actual content, rather than having to click through Mashable or TechCrunch. I'm not going to enrich them by clicking on their ads, anyway. Just point to the original content, thank you very much.
Frustratingly, Mashable doesn't directly link to Codecademy. It instead points the hyperlinked name to another page on its site, and obscures the relevant URL behind what you might naturally consider to be another Mashable page.
They should try showing less contempt for their readers.
http://news.ycombinator.com/item?id=3789022