Coursera is an online Learning platform that offers courses, specializations, and degrees from top universities and organizations around the world. It was founded in 2012 by two computer science professors from Stanford University, Andrew Ng and Daphne Koller. Coursera offers more than 4,000 courses in various fields such as computer science, business, data science, arts, and humanities.

Udemy is an online learning platform founded in 2010 that offers a wide range of courses on various subjects. With over 155,000 courses available in 65 languages, Udemy is one of the largest online learning platforms in the world. Udemy courses are created by instructors who have expertise in a particular subject, and they are designed to be accessible to learners of all levels. Courses on Udemy range from technical subjects like programming and data analysis to soft skills such as public speaking and leadership.

edX is an online learning platform founded by Harvard University and the Massachusetts Institute of Technology (MIT) in 2012. The platform offers courses, programs, and degrees from top universities and institutions around the world. As of 2021, edX has over 35 million learners, with courses available in a wide range of subjects including computer science, business, humanities, engineering, and more.

Skillshare is an online learning platform founded in 2010 that offers classes on a wide range of subjects, including design, business, technology, and more. Unlike many other online learning platforms, Skillshare focuses on project-based classes, where learners are encouraged to apply what they learn in real-world projects. Skillshare courses are created by industry experts and experienced professionals, and they are designed to be bite-sized, with most classes lasting between 20 and 60 minutes. Skillshare offers a free trial, after which learners must pay a monthly or annual subscription fee to access all classes.

LinkedIn Learning is an online learning platform that offers courses and video tutorials on a wide range of subjects, including business, technology, and creative skills. It was formerly known as Lynda.com, which was acquired by LinkedIn in 2015. LinkedIn Learning courses are created by industry experts and experienced professionals, and they are designed to be self-paced and interactive. Courses can range from short video tutorials to multi-course series, with new courses added every week.

Udacity is an online learning platform founded in 2011 that offers courses and programs in various fields such as data science, artificial intelligence, cloud computing, and more. Udacity's courses are designed to provide hands-on experience and practical skills in cutting-edge technologies that are in high demand in the job market.

Codecademy is an online learning platform founded in 2011 that offers courses and tutorials on various programming languages and technical skills. The platform is designed to provide a hands-on, interactive approach to learning coding and other technical skills, with learners able to write and test code directly within the Codecademy platform.

Pluralsight is an online learning platform founded in 2004 that provides courses and tutorials on various technical subjects, including software development, IT operations, data science, and more. The platform offers over 7,000 courses created by industry experts and experienced professionals, with new courses added regularly.

FutureLearn is an online learning platform founded in 2012 that offers courses and programs from top universities and institutions from around the world. FutureLearn courses cover a wide range of subjects, including business, healthcare, social sciences, and more. FutureLearn courses are designed to be interactive and engaging, with learners able to interact with other learners and instructors from around the world. Courses range in length from a few days to several weeks, and learners can choose to participate in courses for free or pay for additional features such as access to course assessments and certificates.

Khan Academy is a non-profit educational organization founded in 2008 that offers free online courses, lessons, and instructional videos on a wide range of subjects, including math, science, humanities, and more. The organization's mission is to provide a free, world-class education for anyone, anywhere.

Treehouse is an online learning platform that offers courses and tutorials on various topics related to web development, programming, and design. The platform provides a comprehensive learning experience, including video lessons, interactive coding challenges, and quizzes. Treehouse courses are designed to be self-paced, with learners able to choose their own schedule. The platform offers courses in web development, mobile app development, game development, programming languages, and more.

MasterClass is an online learning platform founded in 2015 that provides access to courses and tutorials taught by well-known celebrities and experts in various fields. The platform offers courses in a variety of areas, including cooking, writing, music, film, and more.

OpenSesame is an online learning platform founded in 2011 that provides access to a wide range of e-learning courses from various providers. The platform offers courses in business skills, compliance, technology, and more, with options for different industries and job roles.

365 Data Science is an online learning platform that provides courses and tutorials on various topics related to data science, including statistics, machine learning, programming, data visualization, and more. The platform offers a comprehensive learning experience, including video lectures, interactive exercises, and real-world projects.

General Assembly is an online learning platform that offers courses and programs on various topics related to technology, design, business, and more. The platform provides a comprehensive learning experience, including expert-led instruction, hands-on projects, and career coaching.

LearnWorlds is an online learning platform that allows individuals and organizations to create and sell their own courses and content. The platform provides a comprehensive suite of tools to design, publish, and market courses on a wide range of topics, including business, education, health, and more.

WizIQ is an online learning platform that provides a range of tools for live and self-paced teaching and learning. The platform offers features such as virtual classrooms, multimedia content creation tools, and assessments to enhance the learning experience.

Teachable is an online learning platform that allows individuals and organizations to create and sell their own courses and content. The platform provides a suite of tools to design, publish, and market courses on various topics, including business, health, lifestyle, and more.

Thinkific is an online learning platform that allows individuals and organizations to create and sell their own courses and content. The platform provides a comprehensive suite of tools to design, publish, and market courses on various topics, including business, health, education, and more.