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
Skills & more
Web Development22SEO9Entrepreneurship21Software Development11Research6Physics4Start-ups8Software Engineering1Science2Product Management2Publishing2Ruby on Rails29
+6 more
GitRubyJavaScriptPythonLinuxManagementFrom Michael's professional profile.
Frequently asked questions
- Who is Michael Hartl?
- 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.
- Where does Michael Hartl work?
- Michael Hartl is Founder of Insoshi.
- What companies did Michael Hartl found?
- Michael Hartl founded Insoshi.
- Where did Michael Hartl go to school?
- Michael Hartl studied at Caltech (Ph.D., Physics); Harvard University (A.B., Physics); Y Combinator.
Founder mafias
Y Combinator mafia8,773
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1
+ 8,766 more
Y Combinator mafia4,716
Also came through, then founded or led a company.
Ryan SheaEntrepreneurshipFounded StacksTarek MansourFounded KalshiSuhail DoshiEating beans & riceFounded Playground +1Subomi OluwalanaW22Founded ConvoyDarius "Bubs" MonsefS19Founded Sightbox +3Matthew ScholzFounded Oisin Biotechnologies +3
+ 4,709 more
Caltech mafia66
Also came through, then founded or led a company.
Dario AmodeiProgress towards BSFounded AnthropicFei-Fei LiDoctor of Philosophy - PhDFounded World LabsBill GrossBachelor of Science (B.S.)Founded X1 +5Chris VoigtPhDFounded Asimov +2Seth LieblichDoctor of Philosophy - PhDFounded Protomer +1Gil ElbazBSFounded TenOneTen Ventures +1
+ 59 more
Same school
Also attended Caltech144
Shaun MaguirePartner at Sequoia CapitalDario AmodeiCo-founder & CEO of AnthropicFei-Fei LiCo-founder & CEO of World Labs; Sequoia Professor of Computer Science at StanfordScott BillerInvestor at GV (Google Ventures)Seth LieblichInvestment Team at 8VCMarkus EnzelbergerPartner at Versant Ventures
+ 138 more
Also attended Harvard University1,558
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 CapitalGBill GatesCo-founder of Microsoft; Chair of the Gates Foundation
+ 1,552 more
Also attended Y Combinator2,000
Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesCollin WallaceGeneral Partner at Lobby Capital
+ 1,994 more
Shared employers
Also worked at Quark Sports1
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Also worked at California Institute of Technology77
Alex BlaniaCo-founder & CEO of Tools for HumanityHaomiao 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 SignalFire
+ 71 more