Yeaaaah, that IBM website is hella broken. Once you click into a subsection of challenges, the links to go back to the main section just break entirely. Plus, their Twitter API key seems to not be working. Also, some of the challenges are a link that take you to a different subsection. When you click them, they don't open in a new tab. They redirect your current tab to the new subsection (without completing the challenge), so you can't get back to the challenge to mark it as done unless you clear your cache. And when you do that, it forgets you clicked the link, so the challenge is uncompletable.
Are they sure this is for devs?
EDIT: Oh, and the "Later" button on challenges is broken. Plus, there's not really any indication for whether you have successfully entered the sweepstakes. So I'm not sure if I'm in the running, or if I just have an account on a broken website.
