Google just said that they will be including google +1 into search results. While not directly making it the number one factor to achieve good ranking it will impact what you see when you search. Twitter says google is unfairly using its relative search monopoly to push themselves to the disadvantage of their customers. WHAT Do YOU THINK? It is Fair or Foul?
I think it is fair. If you manage such a great search engine like Google you will find it very logic to predominate everything on the world wide web. Facebook is also using ALL available tools to stay on the top of social media websites. This is an endless game.
Of course it is fair. the results should be relevant to the search terms. here adding +1 to search results is nothing but collecting the feedback from the googlers. This can help google to measure the sites/page rankings. even this is an opportunity to the website owners as well as users. users can recommend a website or a page easily in this way.