The Group is an easy way of keeping in touch: any message to the group from one member goes to all the other members. Each member may choose whether to receive messages from the group one at time as they are sent, or as a daily digest - that is, just one message containing all the individual messages sent that day. Replies to messages may be sent to the group or to the individual member who sent the message (that's called "replying off group").
The KTA Yahoo Group is open to any KTA member who wants to join. But you do have to apply to join to the Yahoo Group: this helps stop junk mailers using the group.
Joining is actually quite easy - just follow the instruction on the KTA Mailing Group Home Page at: