Web Services has added drag and drop functionality to Email+ and Blogs. Now, when you compose an email message or manage your blog posts, you can drag and drop your entries to reorder them on the fly. The "knurled" pattern in the far left column (outlined in red below) indicates that a row is draggable—just click, drag, and drop. The up and drown arrows are still available as an additional ordering mechanism.
We will also be adding the drag and drop feature to Forms and Surveys in the near future.