A Portuguese translation, by fan "Moggo", is underway. LarryStylinson7 is doing Italian. And there's Chinese by hml_dahuazai. If you are working on or aware of another translation please send me a link.
I have a forum for fans of my work. There is a discussion thread about this fic on Less Wrong, and also one on TV Tropes. Luminosity has a TV Tropes page.
You can find a collection of links to other things I have done here on my hub site. Of particular interest may be Effulgence, which may be read as a sort of sequel to Luminosity.