PSP Xerver is a new application built by SnYpEr WoLf to combine a PSP portal with a web server. It's based on the Windows program called Xerver, which is a free FTP and HTTP server.

He does mention some current issues with it, but for those willing to test it, it does seem like it's easy to install, and even easier to use for those accustomed to homebrew and installing stuff on their PSP:

The only instructions are to mainly just install Xerver on your PC then run it, then run the portal on your psp which will redirect you to the server. Unfortunately right now, for some reason, i can't seem to find a way to let a person input their own out IP into the portal... sort of like PSPFTP.