A month ago I found the new upvote and follower exchange SteemFollower.
The special at this rapid growing service is, that you get upvotes from real users and not from bots. And if you have only little Steem Power, you can get upvotes back with worth up to two times the worth of the upvotes you give.
When I started testing the service, there were nearly 350 users. Well, a month later, there are over 3200 users. My last post has already received at least 170 additional upvotes through this service.
Also these site has a working referral system, where you will receive 5% of your referrals upvotes.
If you also want to try out this service, then please use my Referral Link to sign up there:
https://steemfollower.com/?r=343
Thanks @mahdiyari, you made a good service.