I'm an Assistant Professor in the School of Interactive Computing at Georgia Tech. I joined the Georgia Tech faculty in 2011 after finishing a Ph.D. in CS at Illinois. Our work here is supported by grants from Yahoo!, Google, the NSF and DARPA. I've also founded several social media sites, and my work has received four best paper awards and two nominations from ACM's SIGCHI. One of my favorite activities in life is drinking coffee while hanging out on the internet.