Hive - Seamless project management and collaboration for your team.
TopStartups.io - Backed by investors like Sequoia, A16Z, Benchmark. See the fastest growing startups in one place.
Sup! Standup Bot - The complete stand-up and follow-up bot
Gemoo Snap - A free "Swiss Army Knife" of screenshot tasks for startups.
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.
Startup 101 - TL/DR: Curated startup lessons for entrepreneurs who are looking to start a company as well as those in the process of building one.