WP Widget Cache针对侧边栏作出缓存的插件. http://www.wpcourse.com/wiki
WP Widget Cache有以下特点
支持设定时间更新缓存数据,
支持定义促发事件（例如：发布一篇文章）自动更新缓存数据,
支持对用户指定的边栏widget进行缓存处理（例如：你可以只缓存最新文章widget，但不缓存随机文章widget）
来自www.wpcourse.com
插件下载：
http://wordpress.org/extend/plugins/wp-widget-cache/
Cache the output of your blog widgets. Usually it will significantly reduce the SQL queries to your database and speed up your site.
来自wordpress教程网
A high-performance caching plugin for WordPress, and a plus for WP-Cache or WP Super Cache!
That depends on how many and what widgets you use, some sites can gain more than 70% improvement.
