Module Link: http://drupal.org/project/dragndrop_uploadsThe Drag'n'Drop module allows users to upload files by dropping that file on a text area.
Who: Technical and non-technical users When: Use this module when your user has a qualified browser and you don't want them to have to upload files separately. Where: Setup of this module is done per content type when you edit it (not manage fields).
Why: Sometimes it's nice to hide all of those extra fields and tell your clients to magically drag over the files to have them appear. Theme song "i dunno" by grapes.
