I was thinking maybe stargatefic. I'm not sure what etiquette for this is either, but lots of people post their stories or links to stories in every SG community that allows it. I don't consider it spam, but I often see most stories come through as many as 3 times or more. The other communities are usually more specialized, though, like tealc_fic or jackslashdaniel or somethinge like that. You could post a link to just [Unknown site tag], though. That would give more people a chance to see the story here.