For those of you who have never used Slack before, it is an instant messaging platform that is widely used in corporate and private communications. Slack provides a quick means of communication without the spam and noise of e-mail. It supports multiple "channels" for communication, as well as direct messages between people and ad hoc groups. Slack provides an online history, so you don't have to be online all the time to see what people have been saying. There are also mobile apps for it that you can install directly on your smart phone device(s).
Invites to the Utah Amateur Radio Slack, and specifically to the MARC channel (#marc) have been sent to all club members listed in the current roster. If you didn't get an invite and you think you should have, please contact Jan (KD7ZWV).
If you got an invitation but you don't want to use Slack, don't worry about it... you can simply ignore the invitation.