I recently revisited the Social Science Research Council's (SSRC) Web Anthology on Remittances and Development, and was pleasantly surprised to find an excellent collection of research articles on this rather fast-growing topic. The articles are presented in a convenient format, organized under some broad themes such as concepts, methods, measures, determinants, uses, and impacts of remittances.
One area where more articles exist and can be added are those on remittance systems (by this I mean retail payment systems) and how they can be leveraged for accessing finance/capital at the household or institutional level. There could also be more articles on regulations - especially on anti-money-laundering/countering financing of terrorism - that affect remittance transactions.