In my opinion, if the only tip a new poker writer follows is this one, then they will have no problems finding work.
But the biggest piece of advice, one that will really get your foot in the door - do the work first before contacting them.
There is nothing, NOTHING, stopping you from turning your ideas into articles before you contact an editor. If you have an idea for a poker article, just do it. If you can get an interview with Jason Mercier, don't waste that opportunity, do it now, worry where it will go later. You have just made an editor's life so much easier than 90% of your peers, because the piece is ready to be published, all they have to do is approve it, and they can use it right away, and if they don't, you can send it to someone else instead.
This is not just new guys that make this error. It pains me to say it, but I know some very talented experienced poker writers, much better writers than I could ever hope to be, who wait around for permission to write something. It really frustrates me when really good writers, often good friends, send me an email simply 'know of any work going mate?' and make no further effort to find work than that.
I don't think I am a spectacular writer, but the one thing I have always had is enthusiasm. As a writer, I have always thrown hundreds of ideas at editors, and when I get an idea for an article I always write it first before finding a home for it. As an editor, I do not have the time to give people work who wont help themselves by meeting me half way, but will always try my best to reward enthusiasm.
More coming very soon......