MapMsg. Clever Google Maps mashup which lets you send a message via a location of your choice. The tech looks pretty cool, and the idea is pretty nifty, so check it out and make someone happy.
”Reliable, proven technology” Signalling using land marks is an ancient form of communication. Compare this to e-mail, hardly available for half a century and already collapsing by spam. “Unique and personal” Forget about boring e-cards with flashy animations. Instead, send a unique satellite-visible message, originating from your own house.