I've decided to do a developer talk on how to create "Social" refiners on your search result pages.
The session will involve Display Templates and JavaScript with some FQL sprinkled in. I will show how to create my trusty old Department refiner for content and a refiner for content close to you, both based on your organization, who you follow and who you interact with from the Office Graph.
Hopefully you will pick up a trick or two and get some ideas for your next project - and if you are near sighted, sit up front as it's all code :)