While I'm satisfied with mpix for their prints to Ilford b&w RC paper, I'm a bit frustrated by the lack of a direct export from Lightroom to mpix. (According to Jeffrey Friedl: "Don’t expect (a Lightroom-to-mpix exporter plugin) any time soon… mpix has made it clear that they do not want an uploader from Lightroom. No idea why. —Jeffrey") This lack of an export feature helped me to miss a deadline for a free shipping offer this week for mpix. Too bad. I had organized the photos I wanted printed into a Lightroom collection, which was useless for uploading to mpix. I had to go through Windows Explorer, which took much longer and I missed the deadline by five minutes. Any other recommendations for online printing services that do play nice with Lightroom? Otherwise I suppose I'll need to use one of Lightroom's options for starring, flagging or marking files to be printed in a way that can also be recognized by Windows Explorer, since that's the usual default for online uploaders from Windows PCs.