OpenView Venture Partners interviews Danielle Morrill of Mattermark about how she grew the team at Mattermark, her focus on sales metrics, and how to control your brand and the conversation in “Founder’s Corner: An Open View into Mattermark with Danielle Morrill”

From the Investors

Steven Sinofsky of Andreessen Horowitz analyzes the innovations that separate mobile and desktop architectures in “Mobile OS Paradigm”

Startup Guru Steve Blank hammers home the consequences of skipping the Customer Discovery process in “How to Get Startup Sales Right”

Aaron Harris of Y Combinator offers some notes on speaking, charts/metrics, and slides in “Advice on Pitching”

Seth Levine of Foundry Group disrupts the venture capital rule of thirds by showing how only 10% of investments produce a return of 5x or more in “Venture Outcomes are Even More Skewed Than You Think”

Gil Dibner of DFJ Esprit shares three rules for VCs in “Some Thoughts on Investment Discipline”

David Beisel of Next View Ventures explains the differences between Super Angels and Foolish Angels in “The Different Types of Angel Investors”

Brad Feld of Foundry Group underscores the effacing immaturity of Uber and Lyft as they try to take down one another in “Dear Uber and Lyft — Get Your Shit Together”

From the Operators

Elaine Wherry, formerly of Meebo, records the “Top Ten Myths of Silicon Valley,” including “Being a Founder is Glamorous” and “The Best Product Wins”

Daniel Kimerling of Standard Treasury discusses the market opportunities and challenges of FinTech in “The DNA of FinTech APIs”

Steli Efti of Close.io dodges the discount in “Easiest Negotiation Hack Ever? Postpone!”

From the Community

Paul Ford of F Train says your job sounds hard in “How to be Polite”

Lauren Hepler of Silicon Valley Business Journal wonders what the unions will think of it in “The Six Biggest Roadblocks for Wearable Tech in Pro Sports“