It’s interesting to see what designs and features others have come up with. Link to Jekyll-powered blogs and other sites here.

• Tom Preston-Werner (source)
• Litany Against Fear (source)
• Git Ready (source)
• GitHub Rebase (source)
• metajack.im (source / Jekyll fork)
  Custom fork with support for times, archives, custom script output etc. Tags implemented with Google search.
• überduper (source)
• The Pug Automatic (source / Jekyll fork)
  Custom fork with Haml, Sass etc. Single page for tags with per-tag anchors. Single page archive by year/month.
• Paperplanes (source / Jekyll fork)
• Tagaholic (source) Machine tags and js are used to organize posts and calculate related posts.
• favrik.com (source)
• Mark Reid (source) - Jekyll used as CMS for personal site and running two blogs: Inductio Ex Machina (machine learning research) and Structure & Process (programming).
• tychoish (source) - Large scale Jekyll site, based on metajack.im’s fork, and using themes from Mark Reid’s site (with a few modifications). 1300+ entries.
• Cyborg Institute (source) uses Jekyll to power the whole site (save the wiki). Uses the same version of the code as tychoish, above.
• Buildr (source) — Generate the site with Jekyll, and use PrinceXML to generate PDF out of it.
• Bjørn Arild Mæland (source)
  I generate the pages with org-mode and then processes the entire site with Jekyll.
• Teddy Zetterlund (source)
• Anil Wadghule (source)
• Basil Shkara — Running Jekyll with a tag structure.
• Elijah Miller / jqr (source)
• Tate Johnson (source / Jekyll fork)
  Custom fork with support for LESS and Growl notifications.
• Jens Neuhalfen
• zegoggl.es (source / Jekyll fork) — based on Henrik’s fork and blog
• Pencil Case Studios (source)
• Crantastic Blog (source)
• Second Drawer
• Tom Ward (source) – Fully featured blog using a Rakefile to generate index pages (of tags, years and months), custom tags to help display posts, and capistrano to publish.
• koraktor (source)
• Cory Ondrejka (source) – My regularly updated personal blog, talks, open source projects, etc
• Marten Veldthuis (source / Jekyll fork) – Both a regular blog and a photoblog. Some minor modifications to Jekyll to browse prev/next within category
• Alex Payne (source)
• Thomas Kollbach
• iPhone Plazer Application Page
• Tomasz ‘Tomash’ Stachewicz
• Dan’s Blog – regular blog, updated through Capistrano.
• IS Development Blog – Uni of Glamorgan Development blog (in development!)
• Bernard ‘Imanel’ Potocki (Using Henrik’s Jekyll fork)
• Matías Flores (fork)
• Stefan Saasen
• Jason Rudolph (source) – Tags implemented with JavaScript to build URL for Google Custom Search Engine
• Eric Johnson (fork) – Fork sorts tags alphabetically by key
• Michael Nhat – Great music, simple design
• Superfeedr’s Blog – Real-time cloudy thoughts from a super-hero
• Jason Toy (source)
• Paolo Dona: not (yet) entrepreneur (source)
• Łukasz Adamczak – Polish only, but you want to see it
• Joel Bradbury (source) – My personal blog, things on software and web development.
• morten lieba.ch (source) — personal blog & website on github pages.
• Andrew Benton (source) – Personal blog on software, development, web technologies, general startup stuff
• Mike Champion
• Brandon Mathis (source using Octopress blogging framework) – Personal blog on interactive design and my work portfolio
• 80KV (source) – Personal blog of Claudio Perez Gamayo, english and spanish
• George Ornbo (source) – An experimental site for George Ornbo’s open source code using HTML5, CSS3 and JSON. Integrates with Lighthouse for ticketing.
• BinaryAge – various open-source tools for web developers (uses submodules for shared content)
• atog.be – personal blog of Koen Van der Auwera
• Relatively Early Development (source)
• Ali Polatel (source)
• Under the hat, a weblog written by 10to1
• Dmitry Belitsky (Worked on Jekyll with Compass — source)
• ozmm.org
• Jamie van Dyke Blog, with atom feed, sitemap and pygments for syntax highlighting. (source)
• blindgaenger (based on Jonas Bonér’s great fork)
• Kevin Menard
• Marc Chung (source)
• Patrick Crosby
• XB Labs Blog
• Langalot Blog
• AppDen (source)
• Guestlist – marketing website for Guestlist, an event registration app
• Brandon Philips (source)
• Kaspar Schiess (source)
  Very minimal theme, using a haml/sass enabled fork.
• RFelix.com (Jekyll fork)
  Explanation and usage of custom features: https://rfelix.com/2009/12/21/my-jekyll-extensions/
  Custom fork that has a category iterator so category page listing is now automatic(https://rfelix.com/topics); added a shorten filter to liquid; folders under _posts are now considered categories; and added a new type of permalink that uses pretty but doesn’t contain the category in the URL. All modifications come with tests.
• Joshua Poehls (source)
• Ben Ubois (source)
• Lukas Rieder (source)
• Claudio Baccigalupo (source) – My portfolio of Github source code projects
• Mislav Marohnić (source) – Programming blog
• Arnar Birgisson (personal web page) and small blog. Trivial Jekyll fork
• John Duff (source)
• iruel.net personal site and blog, fork of John Duff’s config (source)
• Benjamin Thomas (source)
• Mark Wunsch
• Mark Olesen (source) – simple blog with links to other github project pages
• Shape Shed – Portfolio and blog for freelance web developer George Ornbo
• Sam Rosen – Portfolio Website
• Kneatoh – Ethan Turkeltaub’s Journal (source)
• The Hypsometry Blog – Christopher Boone’s design and typography blog.
• Domain51 – Site for tswicegood’s business. (source)
• David Parker – Portfolio and Blog
• Mottr.am (source) – a weblog with comments via Twitter hashtags.
• kle•pas (source) — personal site of Simon Pascal Klein
• Avand — personal site and blog of Avand Amiri
• m4n (source)
• Aaron Kalin (source)
• Bryan Goines (source)
• Mutelight (source) — blog for engineer/developer Brandur Leach
• Vanity — Experiment Driven Development framework for Rails
• Jordan Bracco — Personal website & blog (in French) of webs (source)
• Overtly Open (source) — Tech Editorial Cartoon
• Alex Coles (source)
• Damien Mathieu (source)
• Ruby on ZiGzAg (source)
• wulfovitch.net — Personal blog covering programming topics
• SaForge – Personal blog of Emanuel-S (in German)
• Rack-Jekyll – Transform your Jekyll application into Rack application (Heroku Demo)
• Drivemeup carpooling (source) —Drivemeup Blog (English and French)
• mojobojo (source) – Simple personal blog.
• ridcully.info – Personal blog (in German)
• jouire.com – Personal blog
• PseudoWeb.net (source)
• paradigmatic’s playground – contains articles about Jekyll tricks.
• algorithmique.net – Personal blog (French)
• Jordan Bracco – Personal blog & website in french (source)
• webs’ code labs – github page & english blog (source)
• Rendered Text – Company web site and blog
• senoj.net – Stephen Jones’s personal blog (source)
• Levent Ali – Business and blog for freelance technologist Levent Ali
• Codigo Ergo Sum (source) – Balint Erdi’s personal tech blog.
• alpinegizmo.com – David Anderson’s personal blog (source)