Interesting Instagram uses

This is an article about some interesting and creative ways to use instagram   http://blog.hootsuite.com/10-creative-or-weird-uses-of-instagram/

As a high school math and engineering teacher, I could see using instagram as a way for students to show ways that math and engineering are used outside the classroom.  They could show pictures of water fountains that create parabolas, mathematical patterns in architecture and art, etc...