Non-Monogamy
It's not perfect but found this link on another site and had to share.
http://www.thestranger.com/images/blogimages/2010/09/12/1284338762-nonmonogamy2.5.1.gif
I'd say I fall fairly firmly in the poly section, overlapping BDSM (we're poly and kinky :D ), and dancing on the border of poly fi. (We'd like to be poly fi, with the right people, but are still looking for the right people, which means dating. Life is fun that way.)
Anyone else care to stick a pin in the chart?
Word of the day: diagram - if I draw a pretty picture, will that help you understand?