С# ASP.Net project for Avectra.  

At the heart of the Avectra Social CRM suite is netFORUM, the industry's deepest and most robust membership management solution. netFORUM delivers all of an organization's information in one centralized database, with a comprehensive set of modules that integrates member data and business processes allowing organizations to manage members, chapters, non-members, and other relationships vital to its success.

http://www.avectra.com/netforum/netforum-overview.php