Now a days, I am working with IBM Portal Server. So you will find most of the information here relevent only for IBM Portal. Anyway, I'll keep posting other portals related information too as and when possible.
About IBM WebSphere Portal, Liferay Portal and other Java Portals, JSR 168 portlet, JSR 286 portlet, portlet development, and WSRP etc. Will also try to write about mobile application development like iPhone development, Android development, Nokia development etc.