Currently users searching for open source score editor can find us at the places
- freshmeat.net
- sourceforge.net
- linuxaudio.org
- audio4linux.de
- prolinux.de

I'd say when we have a stable version working quite well (maybe 0.8 or 0.9) we should really start making advertisements on larger music sites. I make my own on the forums I joined but these are not that many (some do not allow links in signatures)