Over the past decade, jurisdictions across the globe have come to view privacy and the collection of consumer data as an antitrust problem. This is a foreword to a database of commentary on privacy and antitrust law and enforcement. The existence of over 200 pieces of commentary in this database, including many on proposed agency enforcement programs, suggests that privacy has become widely viewed as, indeed, a proper focus for antitrust enforcement. This foreword highlights some noteworthy trends from investigations, case law developments and regulations involving privacy and antitrust in several jurisdictions, including the US, the EU, China and the UK. While the database includes commentary concerning reaching back into the first decade of the 21st century, it is dominated by commentaries from just the past 3 years, particularly focused on social media platforms. In particular, the foreword covers (i) shifts in the sectors under scrutiny; and (ii) a trend towards direct regulation that would impact the privacy-antitrust relationship.