Personal Web site framework

I want to build a framework to update this website. The first cut of the feature list is as given below. One of my main requirements is a site-wide/ central module for common functionality such as search, calendar, etc.

• Central Calendar




• in ICalendar format


• in RSS format




• Central Search


• Central Templates/ Skin


• Central Response system




• Online posting


• Email


• IM


• Polls




• Blogger


• Photo/ Image gallery


• Online Article publishing




• Updateable online


• Draft


• Schedule release




• RSS/ Atom




• Website


• Blog


• Calendar




• Present documents in multiple formats




• Single-page/Multi-page HTML


• Printable HTML


• XML


• PDF


• PostScript


• MS Word




• Keyword replacement


• Visitors




• Registration


• Personal Page

I have seen all this functionality in different open source projects. But I want to know if there is ONE integrated web site software already available in Java. Let me know if you find one.

If it does not exist, I am planning to integrate a set of existing open source projects. Which ones would you suggest?

Let me know if anyone is already working on a similar thing or is interested in developing it with me.