Google Give +1 to the World Wide Web

Having launched its +1 button across search results back in March, Google have now upped the ante by rolling out it's "Like"-a-like across the web as a whole.

Up until now, the +1 button has just appeared next to search results (and only those listed in English across the US Google site), enabling searchers to click it if they recommend the site to others.  Then when their friends search (assuming everyone involved is registered with and logged into Google) they will see these +1s.  

Google has now released information on how to get the +1 button onto your own site, so that users can +1 your site directly from the site itself.  Then when their friends search, this +1 appears in the search results too, in the format of something like "Fred Smith and 6 others +1'd this".  The button can be added with a simple bit of JavaScript, and can also be amended to allow users to +1 various different pages from one page on a site (otherwise the +1 button simply uses the URL of the page it's situated on).

Google have also partnered with a number of sites such as Mashable, TechCrunch, Reuters, and Bloomberg to add the functionality, and are also in the process of adding it to Android Market, Blogger, Google Product Search, and YouTube.  Those involved in website analytics will be interested to note that usage data will be added to Google Analytics and AdWords soon.

The issue remains that only logged in Google users will benefit; it remains to be seen whether they can create enough of a buzz to attract others to register and achieve volume interest.