PostGIS online is a site for testing and learning spatial SQL. It was released in Mars 2010.
It is hosted at Linode.com on a Xen-virtualized ubuntu-server
The main software used is:
So far it is a one man project written by me, Nicklas Avén
to get in contact send a mail to:
nicklas.aven@jordogskog.no
My blog http://blog.jordogskog.no