Here, here.

Let me add, theists, that many of the topics you're going to be tempted to write about have been covered many times.  It's quite likely that someone, or many someones, have addressed the exact same thing you're going to say.

Just have a look through the appropriate forum.  I bet you will find what you're looking for.  We have forums for science, evolution, philosophy, and an atheist vs theist forum, where you'll find all the common apologist arguments refuted, over and over and over. 

If you're having trouble finding your topic, it's worth noting that subscribers have access to a search engine.  Subscriptions start at a measly $5 per month.  You can find the donation information on the left sidebar.