I've been a member of the Steemit.com website for 3 months now. I can attest to the validity of the claim, Post, Vote, and Get Paid. You post on Steemit just like you would on other websites.
If your post is upvoted, a term that signifies someone likes it, then you'll earn a reward.
I believe Steemit.com can become the next big thing in social media. Get on board before everyone else, you be glad you did.