Can I send a friend a message if s/hes not a member of SMSjunction?
Yes You can send any friends a message even if they are not a member of SMSjunction. But do remember that if your friends are not members of SMSjunction.com they would not be able to send the messages to the group but just receive the messages. So start a group and invite them to become members to take full advantage of SMSjunction and just start exchanging messages.