android-notifier - Project Hosting on Google Code
http://code.google.com/p/android-notifier
"This project sends notifications to a desktop computer when certain events happen on an Android device, such as the phone ringing, an SMS being received, or the battery running low. The notifications can be sent over Wifi, Bluetooth, or (in the future) USB. "
Notify.io brings notifications to the web « blogrium
http://blogrium.wordpress.com/2010/01/26/notify-io-brings-notifications-to-the-web
"In October 2009 I started a project called Notify.io and a month later announced it. I talked about how it will bring notifications to the web. Now that it’s basically alpha complete, I’ll give you a quick walkthrough of what makes it so great."
stanlemon.net : jgrowl
http://stanlemon.net/projects/jgrowl.html
"jGrowl is a jQuery plugin that raises unobtrusive messages within the browser, similar to the way that OS X's Growl Framework works."
briksoftware's products
http://briksoftware.com/products/unplugged
"UnPlugged is an application to notify when the power cord of the Mac is unplugged or plugged in."
PEAR :: Package :: Net_Growl
http://pear.php.net/package/Net_Growl
"Send notifications to Growl from PHP on MACOSX"