Success in Activist Tweets (formerly known as Activism & Social Media) is a Catalyst Launch pad that aims to specify the requirements of an online platform to bring together existing research on social media use in activism, and the experiences and views of activists themselves. This will involve both a collaborative online environment (e.g. a wiki) and real-time analysis of activist social media use. By combining these elements, the project aims to explore which practices are successful and why they work. This will ultimately enable us to create a community platform to share experience and research around activism and social media.