About
Michael Hartl authored the Ruby on Rails Tutorial and Learn Enough books, and previously founded Softcover (acquired in 2022) and Insoshi, an open-source social networking platform from Y Combinator's 2008 cohort.
Founder at InsoshiYC W08
Intro paths
YC
Michael went through Y Combinator (Winter 2008) β any YC alum in your network can reach them through the YC community.
β
In turn, Michael can intro founders to Insoshi's investors below.
Insoshi's investors Β· 1
Co-founders at Insoshi
LN
Long NguyenFounder
Experience
- Self-employedIndependent Researchercurrent2022 β present
- Learn EnoughFounder2015 β 2022Los Angeles Metropolitan Area
- SoftcoverFounder2013 β 2022
- Rails TutorialPrincipal2009 β 2022
- InsoshiFounder2008 β 2009
- Michael HartlPrincipal2005 β 2007
- Quark SportsCofounder2003 β 2005
- California Institute of TechnologyPostdoctoral Fellow2003 β 2005
- California Institute of TechnologyInstructor in Physics1997 β 2003
Education
- CaltechPh.D., Physics1997 β 2003
- Harvard UniversityA.B., Physics1992 β 1996
- Y Combinator
Skills & more
Web Development22SEO9Entrepreneurship21Software Development11Research6Physics4Start-ups8Software Engineering1Science2Product Management2Publishing2Ruby on Rails29
+6 more
GitRubyJavaScriptPythonLinuxManagementFrom Michael's professional profile.
Founder mafias
Y Combinator mafia8,668
Also came through, then founded or led a company.
Sam AltmanPresidentFounded LooptFred EhrsamYC Summer 2012Founded CoinbaseMatt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded PursuitDelian AsparouhovYC Summer 2014Founded Nightingale +1Justin KanYC Winter 2018Founded Rye +3
+ 8,661 more
Harvard University mafia283
Also came through, then founded or led a company.
Spencer RascoffBAFounded House Whisper +1Jonathan LimMPHFounded Boundless Bio +1Merrill LutskyBachelor of Arts (B.A.)Founded Graphite +1Altay GuvenchBAFounded Audiobeta +1Charles FormanDoctor of Philosophy (Ph.D.)Founded Storyboarder +1Rafael GarciaABFounded Kernel +1
+ 276 more
Caltech mafia53
Also came through, then founded or led a company.
Chris VoigtPhDFounded Asimov +2Bill GrossBachelor of Science (B.S.)Founded X1 +2Seth LieblichDoctor of Philosophy - PhDFounded Protomer +1Shyam SrinivasanBSFounded Zitara +1Evan MurphyBSFounded Zitara +1Ayan BandyopadhyayBachelorβs DegreeFounded Finic +1
+ 46 more
Same school
Also attended Caltech133
Shaun MaguirePartner at Sequoia CapitalScott BillerInvestor at GV (Google Ventures)Seth LieblichInvestment Team at 8VCMarkus EnzelbergerPartner at Versant VenturesWen HsiehFounding Managing Partner at Matter Venture PartnersHaomiao HuangFounding Partner at Matter Venture Partners
+ 127 more
Also attended Harvard University1,470
Alfred LinPartner at Sequoia CapitalChris DixonFounder & Managing Partner of a16z crypto at Andreessen HorowitzSarah TavelVenture Partner at BenchmarkDanny RimerPartner at Index VenturesLaela SturdyManaging Partner at CapitalGRyan IsonoDeal Partner at Felicis Ventures
+ 1,464 more
Also attended Y Combinator2,000
Leo LuInvestor at Foundation CapitalMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesVictor SantosVictor Scout at One Way VenturesSwapnil JainCEO, Observe.AI at EMERGENT VENTURESChase AdamPartner at Very Serious Ventures
+ 1,994 more
Shared employers
Also worked at Quark Sports1
Also worked at California Institute of Technology65
Haomiao HuangFounding Partner at Matter Venture PartnersConnor CooleyVenture Partner at Electric Feel Ventures LlcHelen McBrideOperating Partner at BOLD LongevityAlex HartzGeneral Partner at Shine CapitalDeb RayCo-founder and Chief AI Officer, InferenceCloud.ai at SignalFireIlya FushmanPartner at KPCB
+ 59 more























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