Mining cryptocurrency:
Genesis mining: Use this code "CJ0igm" and get 3% off every purchase on Genesis Mining and/or get registered by the following link below!
https://www.genesis-mining.com/a/362795
localbitcoins:
Buy/sell bitcoin worldwide.
https://localbitcoins.com/?ch=63mb
Amazon: 15% discount, if you buy with bitcoins.
https://purse.io/?_r=oRbb5D
Reading a book and get paid for it in bitcoin.
http://www.paidbooks.com/?ref=163885
Work as a professional freelancer and get paid for it in bitcoin.
http://www.xbtfreelancer.com/?ref=27377
Coinbase:
Once you buy or sell $100 USD (€89) of digital currency or more, we´ll both get $10 USD (€8) of free bitcoin.
https://www.coinbase.com/join/57284fc94403b3117f00023e
Thank you.