Right now I'm taking Google's Power Searching online course and am enjoying it. In our 4th lesson, I learned that images can be dragged/dropped directly into the search bar for imaged searches (but not on tablet devices; cf. below!). I got to thinking that this could be incredibly useful in looking at Greek iconography with students. We offer the Medusa Mythology Exam as an optional exam to our students at the school, and I think we could have a lot of fun in a workshop combining the iconography of the mythic figures covered in the exam with the search tools we've learned in the course. As an exercise, we could give students images from Greek vases or other pieces of art and ask them to identify the figures, based on what they see. Then, they could check their guesses by searching for the image online and even figure out more about the image, e.g. its museum location, approximate date, etc. Basically, it's an online scavenger hunt.