This online application is so easy to use. Just double click to add a "popple" box and either type or choose and image, video, or map from your computer or online resources such as Flickr, Facebook, Google Maps, or YouTube (please note, some videos from YouTube may not be appropriate). Popplet also has some great extra features. The creator can add other users to collaborate on a project. Then once a project is complete the project can be embedded in a web site, blog, or wiki or posted on social media sites such as Facebook and Twitter.
Thanks to many in my PLN that have shared this resource. Most notably: Larry Ferlazzo, Free Technology for Teachers, and The Whiteboard Blog.
Here is an example of an embedded project: