They share both sides of their business on their instagrams. 

I actually follow condor on instagram and have attended the rei events before and absolutely loved it.

Looking for marketing advice for our second STR in Oakhurst Ca.We have an Instagram and Facebook page.

I am currently executing a digital marketing strategy that will allow home buyers to find dream home on instagram.

Looking for all investors, agents, and property managers in the Charlotte Area to follow me on IG llv_investments. Looking to build a large network on social media.

Instagram? 

Also consider making videos and creating a YouTube channel for your REI business - here again, Google owns YouTube so they give you a lot of "SEO" credit if you use it.If you're a listing agent, you might feature pics of houses on Instagram or Pinterest.You might also create a BLOG and write about real estate and work on developing a following there.Then there are the RE-specific social sites: BiggerPockets, Trulia, Zillow (you can create blogs and post articles and comments on those sites).I've never found much use for Twitter, myself.Point is, it's not hard - you're already doing social media here in BP!  

Great link you shared too.I have used it to create social media headers for FB, Twitter, Google+, used it for really clean Instagram and FB posts.

I started advertising online through Zillow, facebook, and instagram.

I don't really use FB though, I like Instagram and Twitter much more.