Bitcoin has emerged as the most successful crypto currency since its appearance back in 2009. Besides its security robustness, two main properties have probably been its key to success: anonymity and decentralization. In this paper, we provide a comprehensive description on the details that make such cryptocurrency an interesting research topic in the privacy community. We perform an exhaustive review of the bitcoin anonymity research papers that have been published so far and we outline some research challenges on that topic.

The emergence of broadband networks - both wireline and wireless - has assisted in fostering the applications and content development, and provided content and application providers with a huge and growing addressable market with very low barriers to entry. However, there is always a tension between end-user connectivity providers and CAPs on the nuances of net neutrality, the principle that content consumed should be decided by the end-user without any distortion by the connectivity provider.

Recruitment of women in the periconceptional period to clinical studies using traditional advertising through medical establishments is difficult and slow. Given the widespread use of the internet as a source for medical information and research, we analyze the impact of social media in the second phase of an ongoing randomized, open-label clinical trial among pregnant women. This study aims to assess the effectiveness of social media as a recruitment tool through the comparison of diverse recruitment techniques in two different phases of the trial.

An experiment by Microsoft Research aims to see how people will interact to solve a puzzle that relies on teamwork and cellphones.