Strava recently when I started going on weekend adventures throughout and outside the city. The app's function is to track your ride by gps and rank your best time on segments with other users. This creates an element of merciless competition with friend and colleagues, which can be fun if you like that. You can get creative, challenge yourself, brag to your friends, and create a safety zone for your bike around your house, work, or lock up spot when you go to the privacy tab on the settings page. It's fun to see what others are doing to get a little inspiration on a ride your interested in taking. I do have to say I tend to forget to track a ride but sometimes it's nice to ditch the gps and just enjoy the rode.
What types of apps do you use to share your cycling adventures? Any good ones to note?