Looking for someone to hike with this weekend? Want to brag about your latest climbing conquest or find tips on the best backcountry skiing stashes? Check out Gociety, a social platform for adventurers seeking the group fitness experience outdoors. Developed in Colorado by two former Skiing Magazine staffers, the free app and site allow members worldwide to find partners, offer advice about conditions and routes, discover new trails, and share tips specific to different outdoor sports. You can filter adventures by region or activity and post your own plans for others to join. Sure beats trying to make friends at the gym.