To beat writers block try free writing. It is an excellent way to get all those creative juices flowing especially if you have no idea what topic to begin with. This also helps to get ideas for a specific topic and the great thing is there is no need to write totally perfect. No punctuation, no problem. Run on sentences, keep those sentences running. Once you are finished, read over what you wrote and highlight, circle, or simply write down the ideas you find to be worth anything. Then you can go from there. Free writing always helps me get to the starting point.