Technology has progressed such that a person's conduct and communications that were once private are now often exposed publicly. A US judge noted in 2010 that people now have little choice but to share broadly if they want to participate in society. Mobile devices and cloud computing allow learning to occur anywhere, and social software can engage students in novel online spaces. However, concerns include how student data is used and the lack of critical review of new edtech. Location-based activities and learner-generated content were proposed as potential classroom activities.