My Corporation put together this infographic taking a look at what businesses are growing fast. Domainers might want to look at the list for domain ideas, although many of the best I am sure were regged a long time ago. Still its good to look at what’s growing fast and see if there are some unmined nuggests. I think things like this also help you to decide which name you may want to develop. If you already have names in these niches they may move up the ladder to get developed first.

What are the references you used?
Could you post a larger gif, so that I can zoom in and read the small print?
Thanx!
🙂