As a minnow, my most favorite content promoting platform is 
Hive account@minnowbooster as they have around 2.7x return on vote buying servuce. However, lately their supply of upvotes is constant hovering at very low level and that makes the service unusable for me.
Introducing Smartsteem
This is a service founded and maintained by 
Hive account@therealwolf. It works pretty much the same as Minnowbooster, you can buy and sell votes, and delegate SP to the bot. They have a really clean and user-friendly site that makes things really clear even for those who are first time in using such service.
Vote buying
There are two bots to vote base on request using different mechanism.
Hive account@smartsteem is a bid bot that votes every 2.4 hours. The return of vote value is not guaranteed as it is depends on how many bids it received within the time frame. So it doesn't have much different compared to the other bid bot.
Hive account@smartmarket however, is a their signature upvote-service. They claimed to provide fixed value of vote that is at least 2.0~2.5 times the amount user sent. From my experience, it provides at least 2 times of vote value by sending SBD. For instance, sending 5 SBD for will get a vote that worth $10.
The voting happens almost instantly so no waiting time is needed. For more please visit their faq page.
To use Hive account@smartsteem better, it is advisable to sign up as a user via steemconnect and your posting key. Please use my referral link if you found this article useful:
https://smartsteem.com?r=fr3eze
常用的 Hive account@minnowbooster 近来时常不够 vote supply 来提供赞，这时候新发现的 Smartsteem 就派上用场啦。
Smartsteem 其实是一个类似 Hive account@minnowbooster 的平台，由 Hive account@therealwolf 负责开发维护，用家可以通过它买卖赞。而卖赞的部分，主要有两个机器人负责，Hive account@smartsteem 和 Hive account@smartmarket 。
前者只是普通的拍卖式卖赞，所以得到的赞是看每 2.4 小时所收到的竞标有多少而定。而后者 Hive account@smartmarket 就是更为优越的机器人了。它固定了卖赞收到的一定是起码 2.0~2.5 的倍数，即是说要是你寄过去 2SBD，得到的赞起码会价值 $4 。再者，点赞是立即进行的，没有等待时间。想了解更多可以访问他们的有 faq 页面，解说都很简单明了。
Smartsteem 还有更多玩法，想更好的使用所有好处到他们的网站授权还是很有必要的，只是需要用到 posting key。如果你觉得这篇文章对你有帮助，请使用我的链接来注册：https://smartsteem.com?r=fr3eze
下回我会分享白名单的玩法。
