Here are some helpful websites. You can to see if you might qualify for a Loan Modification when you have a Fannie Mae or Freddie Mac loan. There is all sorts of useful information. Some of you may not know if want to do a short sale until you have exhausted your other options and this will assist you in your research.
One thing to keep in mind as well is that there might be a chance you can get your loan modified under this program without having to miss payments and ruin their credit.