I found this group (and Moonjoggers) by accident when doing an internet search for local 5K run/walk races. I do a lot of walking in our neighborhood and decided to join. Even though I have only done a few of the virtual challenges, they keep me motivated since there are a few local 5K's that I plan to do this year and they keep me in shape. There is a nice variety of virtual challenges with really cool (and high quality) finishing medals. You choose which challenges you'd like to do and you can do them at your convenience. A lot of the proceeds go to charity. They also have a Facebook page - great group of people who motivate each other.