Hi Steve
Welcome to the forum
Do you have a Myspace profile where you have uploaded your songs? If so, you can just post a link to your myspace profile. Or, if you have an account with soundclick or Youtube, or any other sites where musicians can upload their songs, all you need to do is post your link onto your post in this forum.
post links to songs in song reviews here:
http://www.songwriterforum.co.uk/song-reviews/ and have a read of the info on the sticky 'read before posting' hope that helps?
Cathy