How to upload your media files to W3 with your iPhoto,iTunes,iMovie

Since I didn’t know this Tips, I always dragged media files to my desktop or arbitrary folder.
But,,

When I tried to upload an image file to W3, I found “Media” and “pictures”,”music” and “movie” at the left column.
I clicked “picture”, wow, the iPhoto Library was opened !
And I could uploaded media files from my iPhoto 😀