We have added a Moon Phases chart to the right sidebar on our website. Moon phases are said to affect the activity levels of wildlife, including fish. Personally, I would have to agree. The theory says that full moon and no moon times are best for fishing, and half moon times are next best. I have a watch that shows me the moon phases and even shows me the peak fishing times within the peak fishing days, which are moon rise and moon fall.
You can see the moon phase chart on any page. Just scroll down the right side.