Wallwisher gets a rebranding
Wallwisher is a great web 2.0 app that lets you post images, text, videos - all kinds of things - in a collaborative environment. In a recent development, WW is now "padlet", but still offers all the great features you've come to love. (Note: all wallwisher.com URLs will redirect to padlet.com. All existing walls and embedded walls will redirect properly, so you don't need to do anything other than getting comfortable with the new URLs :)
"We give you a blank page (a wall). You put anything you want on it, anywhere. Simple, yet powerful!"