CloudApp allows you to share images, links, music, videos and files. Here is how it works: choose a file, drag it to the menubar and let us take care of the rest. We provide you with a short link automatically copied to your clipboard that you can use to share your upload with co-workers and friends.
Additionally you can view, track and delete files right from your menubar.
For Windows user: http://fluffyapp.com/
For those who know better: http://www.dropbox.com