SmugMug is an image hosting service which was founded by father-son duo Chris and Don MacAskill in 2002. Smugmug allows you to upload video files with a size limit to 3 GB and up to 20 minutes long. It also allows you to add 'Custom Video Preview Image' to your video and you can also change the preview image that display on it. So, your friends can see that interesting image before they hit to play the video. To add this image to your video, first select the image which you want to use or create the image in your favorite image editor. Upload that image to your Smugmug gallery and navigate to your video in the gallery. Click 'Wrench' and choose 'Edit' option and then 'Replace Preview'.
You can now install PicBackMan's SmugMug uploader for Mac from the website and start backing up SmugMug Photos & videos.