I really hate to mention the competition and all, but the following talk from a Sony developer relations manager at GDC last week seems rather timely:
http://www.gamesindustry.biz/articles/sony-dont-send-self-published-titles-out-to-die-lonely-and-unloved
In brief:
Self-publishing a game is like self-publishing a novel, an album, or anything else. The barrier for entry is lower, the creative control is greater, the cut of the profits is better, but the day your product starts shipping, you haven't got a friend in the world, and the onus of marketing your creation, spreading the word about the wonders you've unleashed, rests squarely and solely on your own shoulders. Too many developers assume that if they build it, people will come, or that marketing is something that can be left until after the game ships, and it's a shame to watch their games languish because the developers haven't told anyone they exist. He goes on to explain that developers should begin planning their marketing well before release, and that developers should never underestimate how many tools they have available to them.
Obviously, many of the actual examples he gives are fairly Playstation-specific, but the principle is platform-agnostic.
In the spirit of discussion: Does anyone have any suggestions of oft-overlooked modes of getting the word out? Anything that has or hasn't worked for you? Granted, I suspect that for many people here, any recent CG releases were their first self-published release, so perhaps we only know what's been tried, not what works - that's still valuable to know.
We've got people putting games in bars and distributing Flash demos, which are awesome, unique techniques. Perhaps some other people have tried more conventional things, like a web ad or contacting a gaming news site? I'll throw in the venerable Kieron Gillen post on the subject, (which I swear I saw linked here before, but cannot now find by searching)
How To Use And Abuse The Gaming Press:
http://gillen.cream.org/wordpress_html/?page_id=693
EDIT: Gillen's site appears to be down, but Google still has it cached, as does the Internet Archive:
http://209.85.173.132/search?q=cache:UB4-J3FB_pIJ:gillen.cream.org/wordpress_html/%3Fpage_id%3D693+http://gillen.cream.org/wordpress_html/%3Fpage_id%3D693&cd=1&hl=en&ct=clnk&gl=us
http://web.archive.org/web/*/http://gillen.cream.org/wordpress_html/?page_id=693
2D is underrated.