Atheists in my experience are pretty diverse in their world views and ideologies. If you don't believe in god, what do you believe in? I find a great deal of meaning in science and humanism. I'm also a firm believer in democratic socialism (within a modern market context).
Please post what ever it is that has replaced god as the source of meaning and direction in your life and why it is that whatever it is "does it for you".
Nihlists are free to post as well, but I don't know why they would.