[Inkscape-user] OT: Where to post Inkscape contest announcements

Hello, all. Our company is sponsoring a small logo contest (two logos - USD 150 each) and I'd like to advertise it to the Inkscape user community. I did not see a commercial announcements list and did not want to abuse the user list. What would be the appropriate way to distribute the details of the contest to Inkscape users? Thanks - John