Developer How Tos is an oft-visited place where new individuals come to figure out how to start developing on mifos, working with the codebase, and begin contributing as a volunteer. The page has grown organically and could use some organization (i.e. an improved left hand navigational layout/information architecture)
OpenMRS, a sister open source project, who we collaborate with, has a great layout for their developer guide - https://wiki.openmrs.org/display/docs/Developer+Guide. Expand the navigation for this section see their list of pags. This could be used as a starting point.