On Slack by Standuply - The most extensive book on using Slack to the utmost
Hive - Seamless project management and collaboration for your team.
Startup Playbook by Hatch Quarter - A guide to building your startup
Sup! Standup Bot - The complete stand-up and follow-up bot
Marketing for Startups - 47 practical tactics to get customers and achieve hockey stick growth.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.