Google is removing ads on their search side bar. We have already noticed searches where Google was not showing ads and where we believed ads would likely exist. The Search Engine Journal (SEJ) offered the following article on the subject, but the big questions are unknown at this point. Included is an example from Raj Nijjer of Yext who shows an example where a search resulted in four Adwords and a knowledge graph appearing above the fold and leaving organic results to be displayed further down the page. I would think the Google Maps/My Business/G+ data listings still remain and maybe even expand for this as well.

SEJ Article on changes to Google sidebar ads:

https://www.searchenginejournal.com/google-removes-sidebar-ads/157157/