If you wanna stay up to date look here:

https://t.me/AirdropAlert
https://twitter.com/AirdropAlert


You guys should also have a look at NXT, they plan an airdrop for NXT holder. Everyone gets 0.5 IGNIS for 1 NXT, when the ardor snapshot will happen. Dont forget to store your coins in a NXT wallet while the snapshot. Dont store them on an exchange!