After yesterday I found that there seems to be no group dedicated to stuff from Marvellous Designer. So I went and created my own group. HERE http://marvellousdesigner.deviantart.com/ you can post stuff you rendered with clothes from Marvellous Designer, or... and that might interest EVERYBODY! you can request a dress. If you want to know how it is done... head over and post in the request folder.
I also put in all the free models into the group so stuff will be easily found there.