The current prompt is PEEPHOLE and runs January 13-18, 2014 (midnight Eastern time).
Prompt post is HERE. To enter, scroll down to the bottom of the promt post (not this post, the one I just linked) and look for the blue link that says, "Click Here to Enter". It's just before comments.
If you're new round these parts and wondering what this is all about - I give weekly one word writing prompts for you to write 100 words on. You might want to start with the general guidelines and explanation HERE.