Marketing can be free! Just look at the new bar codes. That your smart phone can scan a bar code and take you to a link for more information on the product or service you're interested in is making marketing affordable. But how do you take advantage of something like a bar code? You place it. You place it in bathroom stalls, on lamp posts, on billboards, everywhere you can think to that won't get you put in jail. You can hold contests for your fans that print up the bar code from your website and ask them to place it for you. Follow the hits on your google analytics and have people email you their location so you know who to award the prize after a month or a year.
The Judas Syndrome website is doing just that. For more information on this process see: http://www.the-judas-syndrome.com/apocalyptic_fiction_Barcode.html
For more on generating bar codes see: http://www.barcodesinc.com/generator/qr/