This a great list and i did not know about the one of images! I got to try out asap.
You can also do trading and airdrops,there is a new trading company here that offers zerofees trading and they even have an amazing airdrop,check out this link below.

https://steemit.com/digitex/@jaraumoses/vuvocux-3-unique-features-that-make-digitex-futures-a-great-trading-platform-for-the-future