Coinbase has released a service to teach about various crypto currencies, and in exchange for watching instructional videos, they pay you a bit of that currency,.. so far I've got stellar lumens, zrx, bat and some zec. Cool dealio, all together from the various videos and single question quiz (to verify you did indeed pay attention) I've snagged about $28/!!!
Here is the link for current users to get free stellar lumens (xlm):

https://www.coinbase.com/earn/xlm/invite/7046r3j2

Here is a general coinbase invite for new users, if you buy $100 in Bitcoin (it's rising now, who knows what's next) we both earn a free $10.
New users: https://www.coinbase.com/join/58e7e6a35020c5021630e337?src=android-link

Thank you for taking the time to... View my brief advertising and referral links. Namaste.

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