Find partners with another perspective and gear like an oiled machine.
Micro financial perspective
The financial situation of the BoP-consumer has to be sufficient to afford the product and its price. The micro-financial perspective provides insight into the capacity of the BoP-consumers, households and communities. Micro-financial services can improve the spending power of the poor at crucial points or moments.
Learning centers, banks with a specialism in micro-financing and the individual small investment organization 'Kiva' are experts for this perspective.

Learning centres

Rural Finance
Rural Finance is a learning centre about providing financial services for people living in rural areas. The Learning Centre aims to assist organisations in developing countries to build their capacity to deliver improved financial services which meet the needs of rural households and businesses.
Take a look in their library
ITDG's articles
ITDG provides a source of 'grey literature' in the Microfinance Article Library

Banks

NABARD
The National Bank for Agriculture and Rural Development (NABARD) in India promotes sustainable and equitable agriculture and rural development through effective credit support, related services, institution building and other innovative initiatives. NABARD published a handbook on forming self-help groups especially prepared for reasonably educated and helpful local persons, who can help the poor to form Self-Help Groups (SHGs); the book helps to understand the subject in a simple way.
The Netherlands Platform for Microfinance
The Netherlands Platform for Microfinance co-ordinates microfinance activities in a working group of co-financing agencies and Dutch banks.

Individual small investment

Wanting to connect with and loan money to unique small businesses in the developing world? By choosing a business on Kiva.org, you can sponsor a business and help the world's working poor make great strides towards economic independence.