What are other examples of interactive - "volunteers needed" type websites like WheresGeorge.com, CoCoRaHS, BOINC, Folding@home, Geocaching, BookCrossing?
posted by MrBCID on Nov 19, 2009 - 7 answers

I'm looking to buy a personal handheld GPS unit mainly for hiking and geocaching. Recommend an awesome model for me! [more inside]
posted by PetiePal on Sep 2, 2009 - 24 answers

I've just learned about geocaching and it sounds incredible. Please help me get started, especially with choosing a receiver! [more inside]
posted by Arasithil on Dec 5, 2008 - 15 answers

What are useful/fun/collaborative things that can be done with a PDA, computer and a small GPS device these days?
posted by vizsla on Aug 20, 2008 - 4 answers

How much should I spend on a GPS? [more inside]
posted by ZenMasterThis on Aug 23, 2006 - 9 answers

GeoCaching in NYC: I'm going to be visiting NYC for the weekend, and would love to do some GeoCaching while I'm there. I'm overwhelmed by the amount of caches on the website. Does anyone have specific caches that they've found that are worth recommending? Any areas to concentrate on? Areas to avoid? General NYC caching tips? This will be my first attempt at urban caching, I'm usually out in the woods.
posted by TurkishGolds on Oct 13, 2005 - 3 answers

So I am going to take a friend and his 9 year old Geocaching this Sunday. I am seeking a clear and quick explanation on how longitude, latitude, minutes and seconds work - in a way a nine year old would understand. Answers or good links?
posted by BrodieShadeTree on Sep 2, 2004 - 6 answers