Recently, Google has integrated Google+ search results in the SERP (search engine results page) making a vital impact on the traffic that a website recieves.
I recently made out a Google+ page for BloggingeHow, where previously i was using Google+ profile widget. You can add BloggingeHow to your circles :)
Reason #1 Your Content Is Given Priority
If you have serveral Google+ Followers (i.e many people have added your blog in their circles), then your content is being likely to be shown on SERP for those followers. Say you have BloggingeHow in your circles. Now for a relavant term and keyphares, you may find a blog post from this blog in your SERP with a kind of icon as shown below:
high quality content is being neglected due to this change.
As now, you would see content from your social links rather than on the basis of pure qulaity. But as being out of the Google office, we cant really do much about these changes. The best step on our part is to start intergrating Google+ in our blogs so that more and more people add you in their circles and +1 your content.
Reason #2 Google+ Page Based Upon SEO
If you take a closer look at what elements are being used in the Google plus page, you would be amazed that its totally in line with a SEO approach.
The page title, the description that you use and the do-follow links that you add, all have imense importance in making your blog stand out from the competition. Add all the important links from your blog in the introduction space provided. Google+ allows you to add links within your description.
So it would be wise idea to point out your important pages on your blog, so to drive page rank towards them.
Hope that helped and yeh, dont forget to add BloggingeHow to your circles.