Princess Bride Allusions Video
This video clip is useful for teaching allusions using the Princess Bride. This is a segment of an ESPN broadcast where they use prominent quotes from the Princess Bride.
Girl on Fire: Hunger Games Song Analysis
This site contains a song inspired by the Hunger Games (scroll down to play song). The lyrics and a letter explaining the inspiration for the song are included on the site. This would be an excellent resource for teaching metaphor, allusion (to Romeo and Juliet), or author's purpose. Teachers could also use it to link lyrics from the song to scenes from the novel.
Greek Mythology: Allusions
This resources contains a collection of activities to teach allusions regarding Greek Mythology. The lessons include identifying allusions and explaining allusions. It then builds up to having students create their own allusions.