Learn More
The attention economy motivates participation in peer-produced sites on the Web like YouTube and Wikipedia. However, this economy appears to break down at work. We studied a large internal corporate blogging community using log files and interviews and found that employees expected to receive attention when they contributed to blogs, but these expectations(More)
Computing education suffers from low enrollment and a lack of diversity. Both of these problems require changes across the entire computing education pipeline. The "Georgia Computes!" alliance, funded by the National Science Foundation's <i>Broadening Participation in Computing</i> program, seeks to improve the computing education pipeline in Georgia.(More)
With millions of teenagers on the Internet, millions of parents are trying to understand what their teens are doing and why. Understanding how technology use impacts teens' learning, growth, and social development is critical for their health and wellbeing and for the welfare of the family. Yet, balancing parent authority with teen privacy and autonomy is(More)
New ties are often formed between people who already have friends in common. Though the social sciences have addressed the effects of existing structural patterns on the formation of new ties, less attention has been given to ties in directed networks. Drawing from the microblogging service Twitter, we conducted a web-based experiment in which subjects were(More)
This paper examines tweets about two geographically local events—a shooting and a building collapse—that took place in Wichita, Kansas and Atlanta, Georgia, respectively. Most Internet research has focused on examining ways the Internet can connect people across long distances, yet there are benefits to being connected to others who are nearby. People in(More)
We present Lineup, a system that uses the social network graph in Facebook and auxiliary information (e.g., "tagged" user photos) to build a photo-based Web site authentication framework. Lineup's underlying mechanism leverages the concept of CAPTCHAs, programs that are designed to distinguish bots from human users. Lineup extends this functionality to help(More)
Social media use is widespread, but many people worry about overuse. This paper explores how and why people take breaks from social media. Using a mixed methods approach, we pair data from users who tweeted about giving up Twitter for Lent with an interview study of social media users. We find that 64% of users who proclaim that they are giving up Twitter(More)
We analyze help-seeking strategies in two large tech support boards and observe a number of previously unreported differences between tech support boards and other types of online communities. Tech support boards are organized around technical topics and consumer products, yet the types of help people seek online are often grounded in deeply personal(More)
Studies show that teenagers perceive computing to be boring, antisocial, and irrelevant to their lives. We interviewed 13 teenagers from local Atlanta schools and observed over 40 teenagers in after-school technology programs to learn more about their perceptions of computing. We then interviewed 22 graduate students in the Human-Centered Computing and(More)