ThingLink is a web 2.0 tools that allows users to create and share interactive images. By embedding multimedia links into small buttons, your chosen image instantly becomes interactive. All your content (videos, links, PDFs, images, music, Google docs, etc.) can be shared in within one image without looking overcrowded or busy.
Users can select a free or premium ($35/year) education account.
Example from: http://www.thinglink.com/scene/415540713166471170
Image from: http://tecducacion.com/moviles/ios/haz-tus-imagenes-interactivas-con-thinglink/