http://share.baidu.com/
最简洁的例子:
<div class="bdsharebuttonbox"><a href="#" class="bds_more" data-cmd="more"></a><a href="#" class="bds_qzone" data-cmd="qzone"></a><a href="#" class="bds_tsina" data-cmd="tsina"></a><a href="#" class="bds_tqq" data-cmd="tqq"></a><a href="#" class="bds_renren" data-cmd="renren"></a><a href="#" class="bds_weixin" data-cmd="weixin"></a></div>
<script>window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdPic":"","bdStyle":"0","bdSize":"16"},"share":{},"image":{"viewList":["qzone","tsina","tqq","renren","weixin"],"viewText":"分享到：","viewSize":"16"},"selectShare":{"bdContainerClass":null,"bdSelectMiniList":["qzone","tsina","tqq","renren","weixin"]}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)];</script>