"Map Channels is a service that lets you embed a custom map into your website or blog without the need for coding."
Social Source Commons is a website where nonprofits can share information about the software they use. This particular collection of GIS and Mapping Tools is maintained by Eric Leland.
The IAPAD site contains a wealth of information about participatory and public participation GIS, including an excellent overview of some community resource mapping strategies, as well as tips for community mapping practitioners.
Feeling ironically lost in a world of maps? These critical resources will help you get your bearings!