Service2Media Web Push
Try it: push a message over the web to yourself
On this page you can try out the Service2Media Web Push service. Just type a message to yourself in the form below. If you press the ‘Send’ button, the message is sent to your computer immediately via the Service2Media Push service. This message will be displayed as a notification on your system. You need at least OS X 10.9 (Mavericks) and the Safari 7 browser.