プラスワン ボタンDocumentation You can add and customize the +1 button to meet the needs of your website, such as modifying the button size and load technique. By adding the +1 button to your website, you allow your users to recommend your content to their circles and drive traffic to your site. The +1 button can also improve the time spent on your site by providing recommendations for further reading. Use of the
ソーシャルブックマーク＆投稿ボタンの設置方法 ｜ SEOモード
http://www.google.com/webmasters/%201/button/index.html
Google +1 ボタンを設置してみました + Tips を少し - WebOS Goodies
