I had to google that too. Even being in the LGBT community I hadn't really heard it. Maybe it's because the LGBT people I know that are poly or I talk to poly about talk about it in the same terms I'm used to. Triads, primaries, anchors things like that. Also, even the gay men I know in triads or poly talk about dating like dating and are only in a triad because they literally 'fell' into it after a few years of dating. I don't know. Anyway, this is what I found.
So I was kinda blown away, but it's basically information on all the ins and outs of triads. Not promoting here, just what I found to tie the words together!