Prior research shows that parents receive a number of benefits through sharing about their children online, but little is known about children's perspectives about parent sharing. We conducted a survey with 331 parent-child pairs to examine parents' and children's preferences about what parents share about their children on social media. We find that parents and children are in agreement in their perception of how often and how much information parents share about their children on social media. However, there is disagreement about the permission-seeking process: children believe their parents should ask permission more than parents think they should, and parents believe they should ask for permission more often than they actually do, especially younger parents. We describe two categories of content that children are okay, or not okay, with their parents sharing about them. We offer design directions for managing parent sharing.

E-commerce sites have an incentive to encourage impulse buying, even when not in the consumer's best interest. This study investigates what features e-commerce sites use to encourage impulse buying and what tools consumers desire to curb their online spending. We present two studies: (1) a systematic content analysis of 200 top e-commerce websites in the U.S. and (2) a survey of online impulse buyers (N=151). From Study 1, we find that e-commerce sites contain multiple features that encourage impulsive buying, including those that lower perceived risks, leverage social influence, and enhance perceived proximity to the product. Conversely, from Study 2 we find that online impulse buyers want tools that (a) encourage deliberation and avoidance, (b) enforce spending limits and postponement, (c) increase checkout effort, (d) make costs more salient, and (e) reduce product desire. These findings inform the design of "friction" technologies that help users make more deliberative consumer choices. CCS CONCEPTS • Human-centered computing → User studies; Interaction design.

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