SlackPass lets you create "paid private channels" for your Slack group in minutes. Slack group owners can now easily provide their community with premium services, exclusive content, and extra support for a simple fee (monthly, yearly, or single time).
SlackPass generates a welcome page for a private channel, invites members and handles payment. SlackPass is perfect for support channels, podcasters, coaches and other content creators who want to more deeply engage with their audience and charge for premium services.
via BetaList http://bitly.com/25e3cc2
by Robert Hughey (Google+)