Very neat concept. I like thinking about these new classes of sites/utilities - like one I made called http://shoutkey.com/ http://shoutkey.com/ - which deal wi

Very neat concept. I like thinking about these new classes of sites/utilities - like one I made called http://shoutkey.com/ http://shoutkey.com/ - which deal with useful temporary data instead of storing loads of data forever and ever. I'm interested to know what data store you are using (just curious)?