You can also add ditech.com to that list. Even though their leaf is rather small, I noticed it right away when they rebranded as it seemed oddly unrelated to what they do.

I find this idea of leave logos the most interesting. I saw a lot of this throughout the years and it makes sense. When people think green, they think of leaves and plants and that is exactly what this idea is coming from. This interests me a lot because before "going green", I did not care about any of this. The way the media put it all out there helped me make decisions on what I wanted to do. I hope this helped other people as much as it helped me.