If you are looking to use Google plus in your integrated digital marketing plan then you will have been exploring Google authorship.
Google provide some assistance if you find that Google Authoriship is not appearing in search results.
From the article, I also came across this summary about a keynote delivered by Matt Cutts of Google who spoke at PubCon:
Matt also discussed the concepts of social signals, recognizing identity and the importance of authorship.
While Google can’t necessarily crawl all of Facebook (or other social networks) today, they clearly recognize how social influence can be a key indicator in understanding a person’s authority.
Google will continue to try to read these social signals moving forward.
So even if some social engagement doesn’t have direct ranking impact today, it may in the future.
Just do what you can to be an authority in your space across these social networks.
And in addition:
“Matt indicated that Google will likely tighten up authorship and this may decrease the number of authors shown in results by about 15%. The goal of this effort would be to improve the quality of authors they show and truly show valuable authors with high authority.”
So in summary, if you are not yet working on building authority on all the social networks you use and in Google Plus, do not be suprised if you see competitors who do take a proactive approach appearing in search results above your own business in the future.
If you are just getting started with Google Plus you will also find these resources to help you use Google plus in your marketing of assistance.