The Geomajas GeoTools layer allows you to connect to use any GeoTools data store as a vector layer in Geomajas. This includes WFS, PostGis, shape file, etc.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.