We had a major error in our server upgrade tonight. The database snapshot failed, and the site, horrifically, has reverted to its state as of Sunday at 11 pm PDT. Mixes created, tracks uploaded and new users registered since that time have been lost. This sucks, and we are so, so sorry. We are immediately implementing changes to our backup system to ensure that it will not happen again.
We apologize for the inconvenience, and thank you for bearing with us through the upgrade.