To join us, the only thing you need to do is come with your bike and lots of energy on last fridays.

If you want to stay in touch there are two ways to do it:

1. Facebook.

Join the group, share photos, write on walls and do the whole fb thing.

http://columbia.facebook.com/group.php?gid=6899338074

2. Google Groups

This may be less interactive and trendy, but we also welcome people who have better things to do with their time than poking each other with 1s and 0s. If you join the group you'll get reminders and updates.

http://groups.google.com/group/critical-mass-tel-aviv