Coursera/LinkedIn integration: Hackday Winner, Best in Show

This was a joint hack between dev teams at LinkedIn and Coursera. Goal is to allow simple posting of a completed Coursera course to a user's LinkedIn profile. This is now a new feature on LinkedIn and Coursera: http://blog.linkedin.com/2013/11/14/introducing-a-new-way-to-add-certifications-to-your-linkedin-profile/
Sucess story: http://blog.coursera.org/post/104944129942/peter-baker-switched-careers-to-engineering-with 

No Mo' Stalk[in]': HackDay Winner - Judge's Write-In (Every Big Social Network Should Have One)

LinkedIn is the only big social network left where you cannot completely block a member from looking at your profile. Having a stalker is a real thing, and we have no ability to allow members to block their stalkers. It's unnerving to see in your email or profile sidebar: "[Your stalker] has viewed your profile." Or maybe you have a headhunter that won't leave you alone and is really adamant that you're ruining your career by not responding to him. This hack fixes this problem, and lets you block members who are being unprofessional in a professional social network.

This is now a feature on LinkedIn: https://community.linkedin.com/questions/156990/linkedin-announces-member-blocking.html