Todoist developer launches Twist, a team messaging system that’s a cross between Slack and email [Video]
Slack is introducing a new update that brings built-in screen sharing features to the popular communication software.
Slack says the new screen sharing feature is limited to paid accounts which start at $6.67/month when billed annually or $8/month per user. Free accounts are already limited to person-to-person video calling while paid accounts can participate in group calling. Slack has built screen sharing on top of the existing video features:

The popular communication app Slack is rolling out a new feature this week for desktop users: one-to-one and group video calling. Prior to this update, Slack has been limited to text-based chat and audio calling without add-ons.