区块链的应用其实非常广泛，凡是与互联网有关的行业即可与之有所关联，包括有一些人们意想不到的领域。
补充一些区块链与之相融甚欢的特色领域，参考如下：
区块链+社交网络
Taringa!是拉美地区最大的内容平台，其发布了一个收入共享项目Taringa! Creadores，用户可以通过在其中发布内容赚取比特币。
区块链社交平台Steemit发布了测试版本，利用自己的区块链和加密货币对发布内容以及参与投票和讨论的人发放奖励。
Yours是另一个建立在比特币区块链上的分布式社交网络，预计在2016年年底发布。[21]
图4–43 区块链+社交网络
区块链+游戏
Takara是一款基于地理位置的游戏，玩家可以在该游戏设定的地图中寻找比特币和其他有价值的东西，包括优惠券、入场券、忠诚度积分、公司股票等。为了获取这些“宝藏”，玩家必须亲自跟随GPS到达指定地点。以上所有的奖励都会被记录在比特币区块链上。[22]
图4–44 区块链+游戏
区块链+火车票
当我们使用手机中的App（应用程序）购买车票时，信用卡公司会处理付费过程，并收取相应的手续费。但如果铁路公司采用区块链技术，便可以节省付给信用卡公司的费用，甚至还可以将整个购票系统搬到区块链上，实现购票透明化。
图4–45 区块链+火车票
区块链+电子邮件
如果能利用区块链发送电子邮件的话，邮件传输将更安全，甚至还可以解决垃圾邮件泛滥的问题，因为对于发送垃圾邮件的人而言，向这样的安全体系寄出几百万封垃圾邮件，恐怕是一种极不划算的行为。因为在区块链的体系中，用以交换的信息会经过验证、编码、执行，最后成为一笔记录，储存在一个不属于任何人的分散式网络中。另外，如果寄送邮件的成本极低，或许大家会愿意为了更高的安全性、保密性和时效性而支付些许服务费用。
图4–46 区块链+电子邮件
综上，我们不难看出，区块链技术几乎可以渗透生活的每一个角落。也许20年、10年，甚至5年、1年后，区块链会以光速融入人们的生活。也许你也不知道具体哪里运用了区块链技术，但它已无处不在，与你的生活融为一体。
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