Today Google has rolled out a new social search signal called +1, what this means is that any one can press +1 on your website search listing. This new signal will be powerful becuase it will be Googles answer to Facebook Like buttons. Google will also offer the chance for users to add the +1 Google buttons to websites. Similar to the way in which you can add Facebook bottons to websites.
Many in the search world are claiming that this new signal will be a problems becuase spammers will be able to utalize this new change to infuluence their own websites.
A +1 on in google organic search will also act as a plus on in paid search (A email Adwords reps sent out in the USA)
For more information view the video below on Google’s Plus 1 Button –
* To join +1 buttons in the Australian Market
For further information on Google +1 Search Engine Land’s Danny Sullivan has a great post –