From the Investors

In light of the 7.01% drop in Salesforce’s stock price, Jason Lemkin of Storm Ventures lays out five reasons for why the floor is about to drop out for the rest of SaaS stocks in “Unfortunately, SaaS Startup Valuations Are About to Fall by 50%”

Kanyi Maqubela of Collaborative Fund looks at switching costs and supply-and-demand for Uber and Lyft in “A Thought About Network Effects”

MG Siegler of Google Ventures addresses Twitter’s challenges, and the nay-sayers, in “Wither Twitter?”

Miles Grimshaw of Thrive Capital provides a rare glimpse into an accomplished investor’s thought-process when making a decision to invest in “Sequoia’s Investment Memo on Youtube”

Sam Altman of Y Combinator analyzes the drivers of “Bitcoin Price Pressure”

From the Operators

David Heinemeier Hansson of Basecamp draws a line in the sand for Rails/MVC testing in “Test-Induced Design Damage” — “Above all, you do not let your tests drive your design.”

Chris Wanstrath of Github apologies for “the least transparent blog post GitHub has ever written,” giving a comprehensive review of allegations and findings in “Follow Up to the Investigation Results”

Dick Costolo of Twitter lets on to an ongoing experiment with a private messaging feature in “Whisper Mode” (via The Next Web)

Facebook finally got in on the secret in “f8: Introducing Anonymous Login”

John O’Nolan of Ghost takes you on his journey from Kickstarter launch to $175k ARR, and what’s coming down the pipe in Year 2, in “A Year to the Day”

Darren Nix of 42 Floors has a bone to pick with the folks who had the bright idea to obscure profiles in “The Absurdity of LinkedIn”

Adam Besvinick of Wanelo really wants you to know that Bill Simmons is not “over” the internet, but he is over “being the ‘Sports Guy’,” in “The Evolution of Bill Simmons: From @SportsGuy33 to @BillSimmons”

Featured Founder

Mattermark sat down with Pranay Srinivasan of Sourceasy to discuss his startup, Sourceasy. Sourceasy is a full-stack textiles sourcing service for managing sourcing, along with offline customer service. With 14 years of experience in textile manufacturing, Pranay brought an industry background to a market ripe for disruption.

M: How did you come up with your startup?
P: Sourceasy emerged from a Geeks On A Plane event in Mumbai in Febuary of 2013. Wittlebee was looking for a vendor, and became our first client. With many niche private-label brands emerging, we saw a need to support white labels with low minimums, custom fabrics, quick turns, and doorstop-delivery, all at affordable prices.

M: What is a recent milestone that your team celebrated?
P: Well, 500 Startups publically announced today that we’ll be in their ninth batch, and we just signed Le Tote as a customer on Monday, which is huge.

M: If someone were to thank you in a restaurant for creating your startup, what would you hope they say?
P: Thank you for taking the pain out of manufacturing.

M: Tells us about your team.
P: We’re seven people, five of us in India and two of us in the United States. (And we’re hiring!) Most of the time we’re busting each other’s balls on the phone or fielding calls at midnight (or later) because that’s when India is awake. Our late nights are trying to keep our customers happy.

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