promoting your application

i'm now working on a project and i was wondering how to promote my application. for all the folks out there who once sold an application can you give me a few tricks. we where mostly thinking about a web site and pamphlets ... are these good choices? this application is for any compagny that deals with controled key systems.

thanks for your advice

No popup/popunder/email ads, they are sooooo annoying! images/icons/tongue.gif

of corse Squirm! i also hate these **** annoying nag screens