Minitube - Minitube is a YouTube desktop application.
Img.vision - Image hosting & video hosting for eCommerce sellers
YouView - Browse, watch, convert, and download YouTube videos on your Mac faster, because YouView uses the core technologies of Mac OS X to play instead of Flash allowing video to run smoother on systems with lower specs.
BeeIMG - BeeIMG is a simple, fast, easy image sharing solution created to fill up your image sharing needs.
Tubbler - YouTube Movie Player for Mac OS X.
ImageVenue - ImageVenue is a great online hosting service that allows uploading pictures for showing creative works with a simple-to-use technique.