Animoto is a greta site to use for making videos.  Students can use this tool to advertise and share what books they have read by creating short videos for them.  It is also a great opportunity to show students the images shared on creative commons on Flickr.  Here people share their images and students can clearly see how people are willing to share their photos.  Below is a video I made to advertise two books.  I used the images from Creative Commons and the music came directly from Animoto's site.