Houseparty - Brining empathy to online communication.

Dropzone - If you want your file uploads to work even without JavaScript, you can include an element with the class fallback that dropzone will remove if the browser is supported.

Booyah - Video chat with up to 12 friends at the same time.

Dropover - Mac app for easier drag & drop

Airtime - Hang out with group video, share music & videos

Unclutter - Unclutter is an app that is designed to help Mac users bring order to their desktop. Among other features, this powerful piece of software provides quick access to a user's notepad and clipboard.