Web hosting -- multiple sites in directories under a single domain name (e.g. http://civic.bev.net/seniors/, http://civic.bev.net/lions/) or virtual hosting (e.g. http://www.quiltingclub.org/). FTP access, PHP scripting support, and email reply form support (could be a CGI or PHP) are minimum requirements.
Email -- Civic groups typically need two or more email accounts to assist with Web site management and group management. POP3 accounts are required, and a Web-based email interface is very desirable. Email accounts may use a common domain name (e.g. email@example.com) or use a custom domain (e.g. firstname.lastname@example.org).
Mailing lists -- civic groups typically use one or two mailing lists as information channels to their membership and to the public. Mailing lists may use a common domain name (e.g. email@example.com) or use a custom domain (e.g. firstname.lastname@example.org).
Discussion forum -- civic groups often use forums for public and/or private discussions. These forums are integrated into the group site.
Online calendar -- civic groups use online, interactive calendars with a forms-based interface to provide a calendar of group and civic events. Sometimes more than one calendar view is used (e.g. one for public use, and one for private use by the managing board).