Tanzania: Monitoring Service Delivery
Listening to Dar has a website that allows one to download baseline survey data representative for Dar es Salaam (2010) data. Remarkable about the site is that EVERY TWO WEEKS another data set is added, collected using mobile phones. Data covers a wide range of issues including access to electricity, health, water, nutrition, teacher absenteeism, travel times etc.. Listening to Dar also does regular opinion polling.
You can find them at: http://www.listeningtodar.org