XOOPS is a dynamic OO (Object Oriented) based open source portal script written in PHP. XOOPS is the ideal tool for developing small to large dynamic community websites, intra company portals, corporate portals, weblogs and much more.
JCP已经发布Portlet API Specification Public view，视图建立一个portlet API标准，这样开发者编写的 portlet可以在不同的Portal产品中运行。
We started using the PHP solution "PostNuke." It looked good on the surface, as it is heavily developed and has a wealth of applications and modules. However, when we put it in production, it just didn't withstand the load. We went from 30 percent CPU utilization (with forums running and all) to a box crawling on its knees with 100 percent utilization, and response times in the minute range. It was unusable.