With +1, users will in fact see a "+1" next to their search results allowing them to recommend sites to their friends and allowing these results to populate on their friends' search results page. Google explained this service:
So how do we know which +1’s to show you? Like social search, we use many signals to identify the most useful recommendations, including things like the people you are already connected to through Google (your chat buddies and contacts, for example). Soon we may also incorporate other signals, such as your connections on sites like Twitter, to ensure your recommendations are as relevant as possible.
To me, this doesn't appear to offer any real competition to Facebook to Facebook users other than competing with the Facebook Like button. And according to Google, they plan to offer this feature to website developers. Additionally, Google had some additional comments to say about this,
As we’ve already been saying, we’re committed to making the web more people-centric, and we’ve been gradually giving people new ways to share things and interact within our products. This is just another example of how we’re centering our products around the millions of people who use them every day.
Our focus is on improving our search results–to ensure we get the most relevant results to our users as quickly as possible. Relationships and recommendations are one way to help us achieve that goal–and this is what today’s announcement is all about.
Our focus is on improving our search results–to ensure we get the most relevant results to our users as quickly as possible. Relationships and recommendations are one way to help us achieve that goal–and this is what today’s announcement is all about.




