I think it is kinda rough and lack of features compared to Facebook, it will take a long long time before it can displace Facebook. But I will never dare to underestimate Google.
Nothing new!! You might have seen the facebook "Like" button on the web pages, it is the same sharing button used by G+.
+1 button is like like button on facebook, but its integrated with google search and off course will affected to the SEO of certain site.
Thanks for providing valuable info about google+, but is it a social networking site or a recommendation of +1 given to the search result produced !!!
Google +1 does not have any direct impact to search result, the number of + will not take count into PR, this is to avoid user cheating. However it will create indirect impact, because when large number of user click on the particular search result, it will impact the search ranking.
It's is a nice feature to have on ur site. It dosent hurt you and can help your site in the long run.
Google has finally unveiled Google+, the company’s top secret social layer that turns all of the search engine into one giant social network. Google+, which begins rolling out a very limited field test on Tuesday, is the culmination of a year-long project led by Vic Gundotra, Google’s senior vice president of social.