We're all "fitness buddies", but it's often not practical to think another can go jogging at the same time you do, since we all live in different parts of the world. When it's daytime in Switzerland, it might be the middle of the night where your buddy is.
What we do, mostly, here is provide weight loss tips, motivation, support, etc.
We have a weight loss challenge in progress now, that all 3 of you are welcome to join. You can access it via this link:
http://www.medhelp.org/posts/Weight-Loss--Dieting/SUMMER-WEIGHT-LOSS-CHALLENGE/show/2118666
You mean you can't go to an exercise gym?