Polyamory is the practice of having multiple, open, honest emotional and sexual relationships. This is a pretty broad umbrella, which covers relationship styles that vary from group marriage to those that look very much like "dating".
Additional details of what you may expect to find and not find under this topic:
This section is not intended to cover swinging, which is generally perceived as a style of multiple sexual relationships rather than a style of multiple romantic relationships. For more information on swinging, see:
Society: Sexuality: Activities and Practices: Swinging.
This section is not intended to cover affairs or 'cheating' either.
This section is not intended to cover group sex.
There is generally little overlap between the community that uses the term "polygamy" and the community that uses the term "polyamory". There is therefore a separate listing for polygamy under Alternative Lifestyles : Polygamy, although the actual dividing line is arguable.
CAW's mission is to evolve a network of information, mythology and experience that provides a context and stimulus for re-awakening Gaea, and re-uniting her children through tribal community dedicated to responsible stewardship and evolving consciousness. www.caw.org
The Society is a social and educational organization whose purpose is to promote understanding and appreciation for the many forms of adult intimate relationships and consensual sexual expression. www.sexuality.org/polyamor.html
SSI's intention is to 'create a context in which the arts of whole systems healing, sacred sexuality, polyamory, community development and new paradigm relating can be taught, developed, applied, given professional legitimacy, and disseminated internation www.lovewithoutlimits.com
The Polyamory Society is a nonprofit organization which promotes and supports the interest of individuals of multipartnered relationships and families. www.polyamorysociety.org
A small collection of very detailed personal stories describing people's experiences with polyamorous relationships. www.polyamory.org/SF/Openheart/ohp.html
A personals board including features designed for polyamorous people and relationships. Currently free, cost subject to change. pearz-poly-personals.com
A LiveJournal community, for those who are interested in polyamory, to discuss the philosophy and practice of the polyamorous lovestyle. livejournal.com/community/polyamory
A short, simple guide to maintaining healthy relationships in your life, including relationships with friends, family, lovers, and partners. Did we say simple? We meant it. Simple things stick in the brain better. www.petting-zoo.org/Relationships01.html
Have you ever considered a group marriage? Do you ever wonder how in the world something like that could work out? Our Little Quad explains the hows and whys of a group marriage with practical advice and stories from their own lives. www.ourlittlequad.com
Information on alternative lifesyles, catering to couples, triads and bisexual relationships. Includes personal ads, postcards, bookstore, contests, links, chat and information. members.aol.com/abbyanjack
The non-profit Institute provides info on exploring/understanding workable alternatives to heterosexual, lifelong, sexually exclusive monogamy. Programs, conference/seminars and publications. www.lovethatworks.org