Dropmark - free collaborative sharing and presentation tool

Dropmark is a free (fee based accounts available for more storage) collaborative sharing web app that allows you to also create presentations from files and from web content. File sharing is done through a simple drag-and-drop interface. It also allows you to create presentations and slideshows as well as collaborate on them with others.

You upload your files and then you can share them. You can also use the photos in a slideshow or presentation and add video and web sites. You can also add music from YouTube, Vimeo, and SoundCloud.

Free accounts are 250 MB. 25GB costs $48 per year.

Source: Lifehacker

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