When are you free dot net
Step
1
E-mail everyone in your group and Cc tellme@whenareyoufree.net
Within minutes everyone will receive e-mails directing them to fill out their availability
Step
2
Follow the link and using the simple user interface, click on times you can't make and then click save
Step
3
Wait for everyone else to fill out their forms to see who can't make when and then decide!