| Wilderness_Rhythms Articles on firemaking, cordage, winter camping, and nature lore. Also teaches workshops in outdoors skills. |
| Wilderness_Survival Offers information from U.S. Army instruction manuals on all aspects of a wilderness survival situation. Includes diagrams and pictures. |
| Wilderness_Survival_Guide An illustrated guide to basic skills including travel, food and water, first-aid, and health. |
| Buxley\'s_Geocaching_Waypoint Explanation of the sport, collection of recent news stories, maps of cache locations, a FAQ, and announcements of geocaching parties and events. |
| CacheMagnet Open source geocaching waypoint management software. |
| CacheMate Geocaching database for Palm OS and Pocket PC. |
| Cacheopedia Wiki to create an online encyclopedia / reference / survival guide for geocaching. It is a source for geocaching FAQs, articles, guides, and a whole lot more. |
| Caching_Adventures Caching Adventures is a community for geocachers. Each user has their own blog and can submit articles and participate in forums. |
| CachingCentral Weblog related to the hobby of geocaching and use of GPS. |
| Geo-*_-_Linux_tools_for_Geocaching Provides free Linux software for the activity. |
| Geocache_Rating_System Tool for helping geocachers rate the overall and terrain difficulty of their hidden caches. |
| Geocacher_University Provides information about basic caches, equipment, events, resources, photos, items for sale and links. |
| Geocaching_Zone General weblog about the sport of geocaching and GPSr. |
| geochums Geocaching community with varoius forums including events, travel bugs, and geocoins managed through Northeast Ohio with members from multiple states. |
| GeoLex The Lexicon of Geocaching - glossary of geocaching terms. |
| GPS_-_the_movie "GPS" is the first film based on gps treasure hunting. Come check out our suspense/thriller and play the game. |
| GPSgames_org Features a variety of games involving use of GPS receivers, including geocaching, geodashing, minutewar, geopoker and geogolf. |
| Handicaching Handicaching aims to improve the accessibility of Geocaching for physically handicapped people all over the world. |
| Local_Geocache_Groups Directory attempts to show all known local geocache groups from around the world. |
| MovingCache_com Features exciting point system to foster an environment of excitement while moving a cache to keep the game quite creative |
| Navicache Provides a wide range of information and listing resources for the geocaching enthusiast including worldwide cache listing. |
| Podcacher A family friendly, weekly audio show all about Geocaching! |
| TerraCaching Fewer caches listed than on other sites, but they are rated by members, to encourage memorable and challenging hunts. Wiki, map, how to become a member. |
| Abandoned_Pennsylvania_Turnpike Trip log and other information. |
| The_Abandoned_Pennsylvania_Turnpike Gives a background, and includes photographs and visiting tips, of this section near Breezewood. |
| Historic_Pennsylvania_Turnpike Photos and topo maps of the bypassed tunnels. |
| The_Penna_Turnpike_at_Pennsylvania_Road_Photos Photo essay of the Breezewood area and details on St. John the Baptist Catholic Church and the Midway Service Plaza. |
| Pennsylvania_Turnpike Extensive historical overview and exit guide. |
| The_Pennsylvania_Turnpike_--_a_History Includes postcards from the early days including those of the original two-lane tunnels. Also contains recent pictures of abandoned sections. |
| Pennsylvania_Turnpike_Information_Page Includes scans of historic maps, guides, and postcards. |
| Ray\'s_Abandoned_Pennsylvania_Turnpike_Website Contains photographs and information about the abandoned sections and tunnels near Breezewood. Accepts outside submissions. |
| Welcome_to_Tom\'s_Pennsylvania_Turnpike_Page! Photo log of abandoned sections. |
| Electronic_Toll_Collection_System Metro Road Systems' division. Includes client list. |
| E-Z_Pass Electronic toll collection system that is common in the Northeast U.S., based in New Jersey. |
| Halifax-Dartmouth_Bridge_Commission Authority for the Angus L. Macdonald and A. Murray MacKay Bridges that connect Halifax to Dartmouth in Nova Scotia, Canada. |
| Highway_Toll_Administration Provides electronic toll collection services. Site includes client information. |
| HowStuffWorks___How_E-ZPass_Works Fully illustrated tutorial explains E-Zpass, an electronic toll-collection system consisting of a 900-MHz band car transponder, antenna, lane controller, LAN and host computer system. |
| HowStuffWorks___How_Intelligent_Highways_Will_Work Graphic narrative shows the future freeway's new, cheaper technology and explains how ubiquitous digital devices will aid in easing our traffic woes, perhaps using triangulation. |
| International_Bridge,_Tunnel_and_Turnpike_Association Alliance of toll operators and associated industries. Includes news and resources. |
| MACPASS_-_Automated_Toll_Collection_System Service available for crossing of various bridges in the Maritime Provinces of Canada. Site includes FAQ, price information, and application forms. |