Danny Sullivan at Searchengineland.com has a comprehensive look at Google’s new +1 feature. Interesting ramifications for searchers, as you’ll now see ‘+1s’ from people in your +1 social network or anonymous searches.
Must-reading if you are a site owner/publisher for whom organic search traffic via Google is important, because this feature will be a ‘signal’ incorporated into the almighty algorithm. Also, soon you’ll have the ability to put a +1 button on your website. Adwords buyers are impacted too: Adwords ads will have a +1 button next to them; you will not be charged for clicks on +1s next to your ads, and Google claims that its testing shows that CTR is increased on +1ed ads.