Summitpost.org – SummitPost is a collaborative content community focused on climbing, mountaineering, hiking and other outdoor activities. This site is built by its members, and we welcome you to contribute.

Mount Washington Observatory – Mount Washington Observatory is a private, nonprofit, member-supported institution with a mission to advance understanding of the natural systems that create Earth’s weather and climate. It serves this mission by maintaining a weather station on the summit of Mount Washington, performing weather and climate research, conducting innovative science education programs, and interpreting the heritage of the Mount Washington region.

Mount Washington Avalanche Center – The MWAC is operated by the Androscoggin Ranger District of the White Mountain National Forest and is the only American avalanche center east of the Rockies. With the rich history of skiing and climbing here, it is also the oldest forecasting program in the country.

National Oceanic and Atmospheric Administration – Government administration for weather forecasts

Mountainproject.com – Mountain Project aims to take climbing beta beyond the guidebook, and deliver personalization and community features for climbers across the globe.

New England Ice – This site is built and maintained by the ice climbing community.

NEClimbs + White Mountain Report – User driven forum with climbing conditions, routes, weather, etc.

Caltopo.com - Build and customize your own Topographic Maps. GPS enabled for use on your smart phone.

MyTopo Maps – Since our humble beginnings MyTopo has expanded our custom map and professional services. In addition to producing hundreds of thousands of custom topographic, satellite, and aerial photograph map products, we support Internet-based map services and maintain data and software supporting a wide variety of consumer and professional users.

 
Black Diamond Equipment – What began with a backyard anvil and a hammer has now grown into a global company with offices on three continents. Black Diamond is a company that's not just for rock climbers and skiers, but one that stands for the spirit of the sports we live, their values and goals, past, present and future

Backcountry.com – Backcountry.com began in 1996 with two guys and a stack of avalanche beacons in an apartment in Park City, Utah. Our roots were humble, but our vision was clear: to sell the best outdoor gear there is, and to be the best at doing it. We’ve grown since then, but our vision is still 20/20.

Steepandcheap.com – At Steep and Cheap, we sell premium, core outdoor gear and clothing at prices that are downright criminal. Here’s how it works: Steep and Cheap sells one screamin’ deal at a time until it’s gone. The deals are fat, so they sell out fast. You have to act fast or you’ll miss it, but don’t stress – as soon as one deal sells out, we kick off another. It’s back-to-back deals all day long.

 – GearTrade had its beginnings when skitrade.com was first registered in September of 1998. Since then, the original idea expanded and evolved into its current form. GearTrade was co-founded in June 1999, in Provo, Utah, by a group of outdoor enthusiasts and entrepreneurs who noticed a need for a convenient marketplace for individuals and companies looking to buy and sell used and retail outdoor gear.

Mountaingear.com – Mountain Gear’s catalog was first published in 1993 and is now considered an encyclopedic reference of climbing, mountaineering and backpacking gear. The mountaingear.com website launched 2 years later and supports the retail and catalog foundation with a full assortment of clothing and equipment.

Secondascent.com – Second Ascent is a one of a kind outdoor retail shop that has been in business since 1996. We specialize in all facets of backcountry activity from climbing, backpacking and hiking to skiing and cycling. Second Ascent features an unprecedented variety of new and used items as well as a highly educated and well traveled staff to assist you in finding the right gear for all of your outdoor adventures.

Campmor.com – At , you’ll find all the brands you know and trust, including favorites like The North Face, Columbia Sportswear, Patagonia, Eureka, JanSport, Kelty, Sierra Designs, Mountain Hardwear, Marmot, MSR, Thermarest, Vasque, Ugg, New Balance, Teva, Timex, Smith, Bollé, Outdoor Research, Pearl Izumi, Smartwool – really too many to list.

Altrec.com – Our desire is to offer you the best outdoor clothing and gear to enable you to enjoy the outdoors to the fullest. We believe that spending time in the outdoors can offer deep places of reflection, adventure, satisfaction, and discovery in many aspects of our humanity.

 – The Moosejaw Living Will is our Product Guarantee. It means if you aren’t thrilled with your purchase, return it at any time as long as it’s in sellable condition and as long as you aren’t dead..thus the Living Will.

Sierratradingpost.com – Only the most tried-and-true selection of gear, clothing, shoes, sporting goods, and décor find a home at Sierra Trading Post. So when you find it here, you know you are getting a great deal on something pretty terrific.

Icebreaker Merino – Sustainability is at the heart of Icebreaker, and we aim for profitable sustainability — a business model that balances ecology with economy. It’s possible because nature is an astonishing designer. Everything it creates is simple, efficient and beautiful. Distributor of all merino wool clothing.