So from what I have researched it looks like people start working on REU applications in January. My question is when do you go about getting letters of recommendation if your on winter break in January and when your in school in nov/dec you won't know how many letters you need or where you are sending the letters. In my case, I am going to try to get letters from Fall 2011 professors since i don't have any relationships with my other professors. What is the appropriate course of action? Thanks guys, trying to make this go as smooth as possible.