Maarja-Leena Saar is a project manager of what is public petitioning portal for sending collective addresses to Estonian Parliament.

Main functions of the platform are - co-creation of a proposal, digital signing using the same technology what is used in general elections in Estonia, and visualizing decisions made. Platform is developed in incremental phases based on a user feedback. was launched this year by Estonian Cooperation Assembly, a competence centre founded in 2007 by the President of Estonia.

Maarja-Leena is also passionate and active about Open Data, being one of the founding members of the Open Knowledge Estonia.