Real estate business is now focusing on social media. I have been seeing posts in Facebook by independent brokers and agents on the property that they are selling. Before the internet it was the newspaper's classified ads that is the bastion of real estate business. I think there are still the websites that post classified ads not only on real estate (for sale and wanted to buy) but also in other businesses including services offered. If you have a real estate business then you can post on those sites with classified ads.