Extra Sites Library
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The Extra Sites Library
A growing collection of useful websites, learning platforms, creator pages, founder profiles, company profiles, project homes, and small digital doors that can help a person learn, build, think, create, recover momentum, or discover a path they did not know was available.
The Site Sparks
These are the main doors to keep near the top — useful places for learning, rebuilding confidence, gaining career skills, exploring ideas, and starting again without needing to have everything figured out first.
Khan Academy
A strong starting point for mathematics, science, economics, history, programming, and school-level foundations. Good for rebuilding confidence step by step.
Coursera
A structured course platform with university and company-backed learning. Useful for guided study, professional skills, career growth, and certificates for a work path.
LinkedIn Learning
A practical place for business, technology, creativity, productivity, leadership, and job-related skills. Useful when someone wants to improve their professional direction.
Lumosity
A brain-training website with games focused on memory, attention, flexibility, problem solving, and mental speed. Useful as a light mind-warmup habit.
ChatGPT
A tool for learning, writing, coding, planning, translating, researching ideas, and getting unstuck. Used well, it can help turn confusion into a next step.
Brilliant
A strong place for mathematics, logic, programming, science, data, and problem solving. Especially useful for people who learn better by doing.
edX
A major online learning platform with courses from universities and institutions. Good for deeper study, academic subjects, and more formal learning paths.
Harvard CS50
One of the best doors into computer science. It teaches problem solving, programming fundamentals, algorithms, and the mindset behind building with code.
OpenLearn
Free learning from The Open University, with courses, articles, interactives, and study materials. Good for people who need a gentle but serious place to restart learning.
Microsoft Learn
Official Microsoft documentation, learning paths, and technical training. Useful for Azure, AI, Copilot, software development, data, cloud, and career growth.
Google Skillshop
Training for Google tools and professional products. Helpful for people building digital marketing, analytics, ads, business, or platform skills.
Duolingo
A simple way to start language learning and build a daily habit. It may not replace deep study, but it can open the first door into another culture.
Boot.dev
A practical coding platform, especially for backend development, computer science, DevOps, and deeper technical practice.
Nebula
A creator-focused streaming platform with thoughtful videos, originals, podcasts, and educational content that often goes deeper than the usual internet noise.
Shopify
A platform for building an online store. For someone starting a small business, it can also become a practical school of products, customers, and marketing.
More Useful Sparks
These are practical additions for coding, science, research, career growth, reading, building, and finding the right course when the first door is not enough.
freeCodeCamp
A free place to learn programming through lessons, projects, articles, and coding challenges. Very useful for building real technical skills from the beginning.
The Odin Project
A free, open-source curriculum for learning full-stack web development. Good for people who want a serious path toward building real websites and applications.
Codecademy
A beginner-friendly place for coding practice, programming foundations, web development, Python, data, and technology skills.
MDN Web Docs
One of the best references for HTML, CSS, JavaScript, web APIs, accessibility, and front-end web development.
GitHub Skills
Hands-on lessons for learning GitHub, pull requests, issues, Actions, Pages, and real developer workflow.
AWS Skill Builder
Training for cloud, AI, and AWS skills. Useful for people who want to understand cloud technology or prepare for cloud-related roles.
IBM SkillsBuild
Free skills-based learning for technology, AI, job readiness, and digital credentials. Useful for learners at different stages of a career path.
Kaggle Learn
Short practical courses for Python, data science, machine learning, pandas, visualization, and AI-related skills.
Saylor Academy
A free self-paced course platform for learning new skills, career subjects, and college-level material without needing a large budget.
FutureLearn
A course platform with short courses and degrees from universities and specialist organisations. Useful for exploring new subjects with structure.
Class Central
A course search and discovery site. Useful when someone does not know which platform to use and wants to compare options across many providers.
PhET Simulations
Interactive science and math simulations for physics, chemistry, biology, earth science, and mathematics. Great for visual learners.
Science Buddies
A helpful resource for science projects, experiments, engineering challenges, and hands-on STEM learning for home or school.
NASA STEM
NASA learning resources for students, educators, families, and people interested in space, science, engineering, and exploration.
WolframAlpha
A computational knowledge engine for mathematics, science, data, units, formulas, and structured answers. Useful when a normal search is not enough.
MIT OpenCourseWare
Free access to MIT course materials. A powerful reminder that serious knowledge is available online for anyone patient enough to study.
OpenStax
A library of free textbooks. Useful for students, self-learners, teachers, and anyone who needs proper study material without textbook prices becoming a wall.
Project Gutenberg
A huge collection of free public-domain books. A beautiful place for classic literature, history, philosophy, and older works that still carry value.
Internet Archive
A massive digital library for books, websites, audio, video, software, and historical material. Useful for learning and preserving culture.
Open Culture
A collection of free courses, books, audiobooks, films, language lessons, textbooks, and educational media gathered in one place.
Penzu
A private online diary and personal journal for writing thoughts, reflections, memories, ideas, and daily notes. Useful when someone needs a quiet place to think, process, and return to themselves.
Spark Teacher Websites & Official Pages
A place to gather the official websites, creator pages, founder profiles, company profiles, project homes, blogs, studios, stores, and main public pages connected to the Spark Teachers.
Some Spark Teachers have full standalone websites. Others are represented by an official company profile, channel page, studio page, shop, project home, or public profile instead.
Asianometry
Semiconductors, business, history, development, technology, and Asia-focused analysis with a calm long-view approach.
DamiLee
Architecture, design, resources, books, creative work, and a way of looking more carefully at the built environment.
ElectroBOOM
Electronics, explanations, projects, articles, and electrical learning that also reminds people not to copy the dangerous parts.
Elon Musk
An official profile page connected to Tesla, SpaceX, Neuralink, The Boring Company, and wider technology work.
Wang Chuanfu
The official BYD profile for Wang Chuanfu — an industrial builder whose work connects batteries, electric vehicles, manufacturing, new energy, and long-term technological ambition.
Everyday Astronaut
Rocket explainers, launch information, spaceflight writing, and the mission of bringing space down to Earth for everyday people.
Factory Monster
The main public page for videos about manufacturing, production processes, factories, tools, and how things are made.
Hank & John Green
A home for their projects, books, podcasts, shows, appearances, community work, and the wider Nerdfighter world.
Isaac Arthur
Science, futurism, space civilisation, megastructures, long-term thinking, and the future of humanity.
James Bruton
Robotics, engineering builds, mechanical experiments, electronics, and the XRobots project world.
Katy Perry
The official site for music, live updates, shop links, newsletter information, and her main public artist presence.
Kitboga
Videos, streams, podcast links, community links, and scam-awareness work connected to protecting people from fraud.
Linus Tech Tips
The Linus Media Group site, connected to Linus Tech Tips and its wider technology entertainment and education work.
Mark Rober
CrunchLabs, Mark Rober’s hands-on engineering and STEM learning world for building, experimenting, and thinking like an engineer.
Melodysheep
John D. Boswell’s home for cosmic films, music, visual work, science-inspired projects, and audio-visual storytelling.
Natasha’s Adventures
The main public page for Natasha’s stories, travel, culture, personal reflections, and video work.
Bill Gates
Bill Gates’s writing home for books, learning, global health, climate, technology, philanthropy, and the ideas he is thinking about.
NileRed
A chemistry-focused site connected to NileRed’s experiments, science content, and chemistry work.
Physics Girl
The Physics Girl site, connected to Dianna Cowern’s experiments, demonstrations, talks, resources, and physical-science curiosity.
Plasma Channel
Jay Bowles’s site for plasma physics, electrical experiments, science inspiration, and high-voltage curiosity.
Real Engineering
The Throttle Media page connected to Real Engineering and its clear explanations of engineering and science topics.
Sabine Hossenfelder
Sabine’s site for physics, books, research, videos, newsletter links, and science communication without unnecessary decoration.
Sal Khan
The learning platform founded by Sal Khan, built around the mission of free, world-class education for anyone, anywhere.
Sam Altman
Sam Altman’s blog, with writing on technology, AI, progress, startups, society, and the future direction of tools and civilisation.
Sciencephile the AI
A home for strange, sharp, funny, and cosmic science content told with an artificial deadpan style.
Sixtwotwo 六二二同学
The main public channel page for Sixtwotwo’s cosplay, creative videos, and character-driven visual work.
Stuff Made Here
Shane Wighton’s project site, connected to creative engineering builds, strange machines, experiments, and ambitious problem solving.
The Spiffing Brit
The official site and shop connected to The Spiffing Brit’s game-breaking humour, tea-powered chaos, and perfectly balanced exploits.
Tibees
Tibees’ creative science world, including books, mathematics, physics, astronomy, and gentle curiosity beyond the YouTube channel.
Tom Scott
Tom Scott’s official site, with links to his videos, newsletter, podcast, contact page, and factual entertainment work.
Two Minute Papers
Károly Zsolnai-Fehér’s research page, connected to graphics research, machine learning, rendering, and paper explanations.
Veritasium
The official Veritasium site for science and engineering videos, experiments, expert interviews, demos, and public discussions.
WintergamingTV
The main public page for WintergamingTV’s real-time strategy, 4X, city builder, grand strategy, and chaos-management commentary.
Xyla Foxlin
Xyla’s site for engineering, making, aviation, hands-on builds, storytelling, and creative technical work.
Windows into Other Worlds
A visual project collecting nature, clouds, landscapes, textures, and images that feel like small windows into another world.
How to Use This Library
This library is most useful when it becomes a small action plan, not just a list of links. Pick one direction, choose one website, and give it a real attempt before jumping to the next.
1. Start with your need
Do not begin by asking, “Which website is best?” Begin by asking what you actually need right now.
- Need school basics? Try Khan Academy, OpenStax, PhET, OpenLearn, or MIT OpenCourseWare.
- Need job skills? Try LinkedIn Learning, Coursera, Microsoft Learn, Google Skillshop, or IBM SkillsBuild.
- Need coding? Try CS50, freeCodeCamp, Boot.dev, The Odin Project, MDN, or GitHub Skills.
2. Choose one door for one week
A person can waste energy collecting links forever. The better move is to choose one door and stay with it long enough to see whether it helps.
- Pick one website.
- Choose one course, lesson, or project.
- Spend 20–30 minutes a day on it for one week.
3. Make something visible
Learning becomes stronger when it leaves a trace. A note, a project, a solved problem, a small website, a GitHub repo, or a written summary can become proof that the time mattered.
- Write down what you learned.
- Build a tiny version of the idea.
- Save the result somewhere you can return to later.
4. Return when you get stuck
This library is not meant to be finished. It is meant to be returned to when a person feels stuck, curious, lost, ambitious, or ready to try again.
- Use ChatGPT to make a plan.
- Use Class Central to find alternatives.
- Use the Spark Teacher websites, profiles, and project pages for inspiration, direction, and examples of what long-term building can look like.