The most recent issue of "Polity" (October 2012) features papers on "Deepening Democracy". The papers are available online.
Among the papers are:
An Introduction [pdf]
Human Rights-Based Approaches to Development: Concepts, Evidence, and Policy [pdf]
Varun Gauri and Siri Gloppen
Continuous Institutional Innovation and the Pragmatic Conception of Democracy [pdf]
Participation, Representation, and Social Justice: Using Participatory Governance to Transform Representative Democracy [pdf]