The sport where YOU are the search engineTM

A GPS device and a hunger for adventure are all you need for high tech treasure hunting. Here you can find the latest caches in your area, how to hide your own cache, and information on how to get started in this fun and exciting sport.

Http://www.geocashing.com

Holosonic Research Labs, Inc. has developed a method of creating an "Audio Spotlight" which can be controlled for specific areas of delivery as easily as normal spotlight

http://www.holosonics.com