FACEBOOK
There is a huge database here that steem can profit from potentially.Users can integrate profiles with facebook and there is a huge similarity in that they are both only upvoting and there is no dislike feature that can make you lose money.Also there are methods of payment on facebook but not many people trust them for this.They have a bad reputation for it whereas cryptocurrency can be a easier,faster and more reliable method than that currently used.
This is another platform that users can benefit from as a result of integration.The proffesional aspect nature can go really well with steemit as alot of users are not fake and everything is transparent however this reminds me of the movie the circle where spolier alert: the ceo refuses to and is not happy with showing transparency in his work method.
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Another successful merger could be 
As like steem there is alot of simplicity in its use.I have never used anything as simple as these devices making them mobile friendly and child friendly...when there are nsfw symbols rather than omission like on facebook which leads to control and fake news flagging and so on.
There is not too many irrelevant things on steem,although facebook e.g has grown to a level where they sre making alot of money off it,steems lack of development gives it a clean edge in minimalstic excellence.
HOPE you liked that post,please follow and upvote!
Great outlook and post ...new follower!