For K-12 Education:
* Khan Academy: Offers free online courses covering a wide range of subjects from math and science to history and art. Excellent for supplemental learning and review.
* Coursera for K12: Offers courses from universities and institutions worldwide, suitable for supplementing school curriculum or exploring advanced topics.
* Time4Learning: A subscription-based online homeschooling program with a structured curriculum.
* Connections Academy: Offers fully online public school options in many states.
* K12 Inc.: Another provider of fully online private school programs.
* Outschool: Offers a variety of live, online classes taught by educators in diverse subjects. More akin to extracurricular activities than a full curriculum.
For Higher Education & Professional Development:
* Coursera: Offers university-level courses, specializations, and professional certificates from top universities and organizations worldwide.
* edX: Similar to Coursera, offering online courses from leading universities and institutions.
* Udemy: A massive online course platform with a wide range of courses on various topics, from programming and design to personal development.
* Skillshare: Focused on creative skills and design, offering classes on various artistic and professional skills.
* MasterClass: Features online classes taught by experts in their fields, such as cooking, writing, and filmmaking.
* LinkedIn Learning (formerly Lynda.com): Offers professional development courses covering business, technology, and creative skills.
For Specific Skills & Interests:
Numerous companies specialize in specific skill development. Examples include those focused on:
* Language learning: Duolingo, Babbel, Rosetta Stone
* Coding: Codecademy, freeCodeCamp
* Music: Fender Play, Yousician
Important Note: The quality and suitability of these services vary significantly. It's crucial to research and compare options based on your specific needs, learning style, and budget before committing to a particular program. Read reviews, check curriculum details, and consider free trials when available.