I have a gambling strategy guide article directory setup at http://www.gamblingstrateyguide.com and am accepting gambling related articles right now.
The site is being indexed by google very quickly and best of all you can put backlinks to your sites within the articles and within your author signature.
Come by, sign up and start submitting those articles. I have found not many article directories handle gambling topics, so I decided to start my own.
SmackDog