A question on Google+ and its impact on articlesWhen I Google+ an article I see a sweeping change in its page ranking; it begins improving. I understand that it is likely for my article to come up on the first page of search results of people on my Google+ list if they Google the main keyword/product. But, then that is understandable as I have already shared the article with them.
What I want to know is how does sharing an article on Google+ impact its overall ranking on the web? Does sharing articles on Google+ change the way Google looks at articles?