"Alternative" Geocaching trackables for OCNA:
- Geokrety.org Based in Poland, the Official Trackables of the Opencaching Network. Free!
- Geotrackable.org USA based, founded in 2012. Trackable QR codes. Free!
- Geolutins.com Based in France, also founded in 2004
- Pathtags.com USA based, personal signature items for trading. Very popular!
- Geofish.net Trackable glass fish personal signature items