Daniel is joined by Marco Arment of Marco.org.

Marco also founded The Magazine and Instapaper, each of which he sold off earlier this year. Previously, he was the co-developer and first employee of Tumblr.

Additional links:

• @marcoarment – Marco’s Twitter account.
• marco.org – Marco’s personal site.
• Accidental Tech Podcast – Marco’s podcast with Casey Liss and John Siracusa.
• I’d Tumbl For You – My October, 2008 post lamenting Tumblr’s inadequate API.
• Marco’s Apology – Marco responds to my blog post with a brief, professional apology.
• Marco’s 2006 Resume – Marco’s recent post linking to his 2006-era resume.
• 3-2-1 Contact – PBS program and affiliated magazine from which Marco learned Basic programming.
• QBasic – Microsoft’s Basic programming language.
• BMW Welt Delivery – Program through which Americans can purchase and pick up a new BMW car in Germany.
• Allegheny College – Marco’s alma mater.
• Phi Delta Theta Allegheny – The fraternity chapter that Marco helped to revive.
• IBM Infosphere – The current incarnation of Vivisimo, the Pittsburgh company where Marco started his career.
• Davidville – Remnant of David Karp’s company, now Tumblr.
• Ultimate Bulletin Board – The bulletin board software Marco enjoyed with his friends in high school.
• Daring Fireball – John Gruber’s site.
• Neutral – The twelve-episode car-oriented podcast.
• Core Intuition 91 – Episode where Manton Reece talks about leaving Heroku for a more portable, affordable server solution.
• The One-Person Product – Marco reflects on the history of Tumblr and what the sale means to him.
• Stripe – A payment processing company with great developer-oriented technology and policy.

Sponsored by HelpSpot: Customer service is your best marketing. Make every ticket count with HelpSpot.