Unfortunately, There are no magic places where you can post your music and people will suddenly find you.

Chris' answer is spot on.
Networking is probably the most important thing you can do; and establishing a network takes time (years often!).


Presuming your music is up to snuff, there is no substitute for making in-person, human contact with people.  Go to www.gdconf,com, PAX, www.GameSoundCon.com, etc.  Meet with other composers. More importantly, meet and talk with game developers and producers.

Also, networking is NOT talking to someone for 60 seconds and handing them a business card or CD.  Networking is establishing a relationship with someone and seeing what you can do for them, without anything being in it for you.  it's establishing a rapport over something you share in common.

I know of one composer who got their first game gig (a DS game) because at GDC they struck up a random conversation with someone playing in the indy game forum.  They talked for two hours about games, the control mechanisms, music, game design.  Never did he say "hey, do you have any work for me?"  A couple months later, he got an email from the guy and next thing he knew, he was doing a DS game.

Look at where you live and see if the local college has any videogame clubs.   Go hang out with them and impress them with your knowledge of games and gaming (and gaming prowess ) .  Next time they're doing their own indy game, they might well think of you.

On forums, scour the programming and game design areas.  Chime in and answer the rare question about sound/music when they come up.  (Do NOT post there saying "i'm a composer--hire me').. as you do that, over a period of time those programmers/designers will get to know your virtually and start to trust you.  It's not as ideal as in person, but can still be very valuable.

Good luck!
Brian Schmidt
President, Game Audio Network Guild
www.audiogang.org