Information and knowledge are frequently upheld as the cornerstones of development programmes. Poverty reduction measures delivered through social policies are frequently premised on the need to ensure that both users and providers of services have access to information. In contexts where poor and marginalised groups are largely excluded from knowledge access and uptake, Southern-based civil society is called upon to act as an interlocutor to leverage knowledge on their behalf to achieve social welfare objectives. Ensuring that the greatest number of people have access to timely and relevant information, promoted as part of global-level discourses on the desirability of fostering a “knowledge society”, is presumed to contribute, for instance, to the capacity of citizens to uphold government accountability, ensure access to entitlements or protect basic rights. This paper critically analyses the capacity of knowledge, delivered primarily though not exclusively through new information and communications technologies and leveraged through Southern-based civil society acting as intermediaries, to achieve social policy objectives in development.