Geocaching.com – The official Geocaching web site. Sign up and begin your own adventures today!
Geocaching Online – Offers Geocaching resources, information, events, how-to articles and more!
How to Create and Hide a Geocache – Step-by-step instructions on everything you need to create and hide your own caches. (from WikiHow)
PodCacher – A family-friendly podcast that is all things Geocaching.
Indiana Geocaching – A new blog specifically for Geocaching in the great Hoosier state.
Geocacher University – A site dedicated to teaching Geocachers, both novice and experienced. Also has downloadable logs sheets, brochures, and even a store selling miscellaneous gear and swag.
The Mad Cacher’s Geocaching Blog – A local Hoosier’s blog about Geocaching. Also provides some really nice logsheets to those who sign up for his site.
HiddenCaches – An enthusiasts’ guide to Geocaching
Tales from the GZ 
There is ertainly a lot too learn about this topic. I love aall the
points you have made.