There are a lot of airdrops going on that give you free tokens for just leaving your email and ethereum address. OMG, Qtum, Stellar and many more were airdropped for free.
The only website I found is
http://airdropalert.com/ and it sucks. Many current airdrops are not being listed.
Does anyone have a better one?obviously, at first, airdrops tokens/coins are not being listed yet. they doing this things to share the coins/tokens to be popular and to make a lot of participant to do their simple task and make noise online, meaning there is no better site for airdrops, you can still stay at that sites you mentioned or here at the bounty section. claim all airdrops you can. but as i said some of the airdrops coins/tokens are not listed yet.