This website will turn your composition into a visual. For instance, you could write about Frida Kahlo and it would turn the words into her image. This seems like a good follow up activity to some writing. It may be good motivation to get students writing because they'll want to make this visual.
I was thinking this page ties into W2L because if students put in their work, they could easily see themes. Or if the teacher had the work electronically submitted, the teacher could copy and paste and show the class what common themes they all wrote about.
This website provides an overview of some of the information from out text. It might be a great way to share some of the W2L strategies with colleagues without the book.