Wilco has posted free MP3 downloads for two full concerts from their latest tour on their website, Wilcoworld.net.  The band asks that if you download the concerts, you donate $15 to OXFAM or Doctors without Borders to help their work in Haiti if you are able.

The concerts themselves were recorded 7/13/09 in Brooklyn, NY and 11/4/09 in London, England.  I have already downloaded the concerts (Yes I made a donation),  and given them both a good listen.  The sound quality is low-fi, but not bad for a free concert from a great band.  While it is no substitute for the real thing, it certainly whets the appetite.

You can find the downloads here.