Today, anyone can publish their work, whether this means posing to a Wordpress Blog, printing up some zines, or serializing your novel directly to Twitter. This page lists some self-publishing platforms that offer writers the ability to monetize their work.
However, before you decide to forgo traditional publishing venues, you should also consider the disadvantages of using self publishing platforms, including the need to publicize your own work, and the lack of editorial advice and production assistance:
Rob Barber, in the Guardian: For me, traditional publishing means poverty. But self-publish? No way
Poet & Writers offers a balanced assessment of the risks and advantages of Self-Publishing.