Google+ has been relatively successful, achieving a user base of 90+ million in less than half a year. Google, through its Maps and Places services, already has information on millions of businesses. If the information on each of those business's pages, complete with address, phone number, photos and customer reviews, were put into a Google+ page, Google+ could become a local-business powerhouse.
Google began integrating Google+ into Google Maps last September, to allow users to share information embedded with the maps. With the launch of brand pages, it only makes sense to similarly tie Google+ to the business listings on Google Places.
Moreover, Google Offers would mesh well with all this available information, integrating deal offers with places that people search for and check in to.