You can create an e-mail account dedicated to this purpose. And it was you asking to send an e-mail, so you have to check them out anyway. Idem for a Twitter account, you will have to check the answers there. And the answers on the Twitter account will be public, no?
Perhaps a more effective way is to set up the applet on a server allowing, say, PHP scripts. The applet can call an URL on the server, say
http://someserver.com/mirtunio/experiment.php?count=25Then the PHP script will get the parameter (and potentially some others, like age category, gender, whatever) and add it to your stats on this server. Thus the values will be automatically updated.