This document summarizes research on developing a user-centric approach for controlling web tracking. The researchers studied how web trackers work and conducted experiments to analyze tracking mechanisms. Their proposed solution is a policy engine and sandbox framework that allows users to enforce fine-grained policies over third-party trackers on websites. Future work includes implementing a policy specification and enforcement design to give users control over how their data is tracked online. The goal is to balance personalization, analytics and targeted advertising with user privacy and security.