Class Central is a search engine and review site for online courses. It aggregates courses from many providers to make it easy to find the best courses on almost any subject, wherever they exist. They have served millions of learners all around the world, and are the one of the most credible sources on e-learning.

Every year, Class Central publishes the ranking of the Best Online Courses of All Time, based on thousands of reviews written by Class Central learners.

Best Online Courses of 2017

Mindshift: Break Through Obstacles to Learning and Discover Your Hidden Potential
McMaster University via Coursera
Mindshift is designed to help boost your career and life in today’s fast-paced learning environment. Whatever your age or stage, Mindshift teaches you essentials such as how to get the most out of online learning and MOOCs, how to seek out and work with mentors, the secrets to avoiding career ruts (and catastrophes) and general ruts in life, and insights such as the value of selective ignorance over general competence.
★★★★★ (1250 ratings)

Mountains 101
University of Alberta via Coursera
Mountains 101­­ is a broad and integrated overview of the mountain world. This 12-lesson course covers an interdisciplinary field of study focusing on the physical, biological, and human dimensions of mountain places in Alberta, Canada, and around the world. Specifically, we’ll study the geological origins of mountains, how they’re built-up and worn-down ov
★★★★★ (273 ratings)

Quantum Mechanics for Everyone
Georgetown University via edX
Quantum Mechanics for Everyone is a four-week long MOOC that teaches the basic ideas of quantum mechanics with a method that requires no complicated math beyond taking square roots (and you can use a calculator for that). Quantum theory is taught without “dumbing down” any of the material, giving you the same version experts use in current research.
★★★★★ (24 ratings)

Extinctions: Past and Present
University of Cape Town via FutureLearn
This free online course explores how life on earth has been shaped by five mass extinction events in the distant past. At present, biodiversity is facing a crisis, with the prospect of a sixth extinction event today.
★★★★★ (42 ratings)

Viruses & How to Beat Them: Cells, Immunity, Vaccines
Tel Aviv University via edX
Learn how our immune system fights viral disease and make better vaccination decisions with a clearer understanding of Cells, Viruses, and Immunity.
★★★★★ (21 ratings)

Basic Spanish 2: One Step Further
Universitat Politècnica de València via edX
Beginners course for learners of Spanish that focuses not only on language, but also on cultural aspects, specifically designed for English speakers.
★★★★★ (57 ratings)

Comprendere la filosofia
University of Naples Federico II via edX
Che cosa è la filosofia? Questo corso offre un racconto del pensiero filosofico attraverso quattro epoche da quella antica cosidetta della contemplazione a quella più recente.
★★★★★ (21 ratings)

Positive Psychiatry and Mental Health 
The University of Sydney via Coursera
In this course, we will explore different aspects of good mental health as well as provide an overview of the major kinds of mental disorders, their causes, treatments and how to seek help and support. The course will feature a large number of Australian experts in psychiatry, psychology and mental health research, and we will also hear from “lived experience experts”, people who have lived with mental illness, and share their personal stories of recovery.
★★★★★ (13 ratings)

Dante tra poesia e scienza
University of Naples Federico II via edX
La Commedia di Dante è una delle opere più tradotte e stampate nelle lingue e nei dialetti del mondo. Un testo scritto nel 1300 che affronta temi ancora oggi attuali, e che può rendere l’uomo del nostro tempo più vicino «a quell’amore che move il sole e l’altre stelle.
★★★★★ (15 ratings)

Introductory AP® Microeconomics
Massachusetts Institute of Technology via edX
This economics course is an introduction to basic microeconomic principles. You will learn how individuals make decisions ranging from what type of goods to buy to how many hours to work, and how firms make decisions ranging from how many workers to hire to what prices to charge.
★★★★★ (31 ratings)

Introducción a la programación orientada a objetos en Java
Universidad de los Andes via Coursera
¡Le damos la bienvenida al curso de Introducción a la programación en java por objetos de la Universidad de los Andes! El propósito de este curso es ofrecerle un ambiente interactivo orientado a construir aprendizajes sobre el lenguaje de la programación en Java para la creación y manipulación de objetos.
★★★★★ (17 ratings)

EU policy and implementation: making Europe work! 
Leiden University via Coursera
People have become more critical of European policy and often seem to prefer local policy solutions in response to globalisation problems. How do you experience EU policy? Does it help? And if not, how can we change this?
★★★★★ (35 ratings)

Quantum Mechanics: 1D Scattering and Central Potentials
Massachusetts Institute of Technology via edX
In this quantum physics course you will learn the basic concepts of scattering – phase-shifts, time delays, Levinson’s theorem, and resonances – in the simple context of one-dimensional problems. We then turn to the study of angular momentum and the motion of particles in three-dimensional central potentials.
★★★★★ (11 ratings)

Patrick Henry: Forgotten Founder
University of Virginia via Coursera
Patrick Henry, who helped to ignite a revolution, deserves better. This course will explore how he over¬came challenges to reach the pinnacle of Virginia politics and unite Americans behind a challenge to Britain – the eighteenth century’s super-power, why he opposed the U.S. Constitu¬tion, and why he then came out of retirement to defend the people’s Constitution against the attacks of Jefferson and Madison.
★★★★★ (13 ratings)

L’Italiano nel mondo
University of Naples Federico II via edX
La diffusione dell’italiano nel mondo è veicolata da canzone, cinema, teatro, opera lirica, gastronomia, design che diffondono anche per la lingua un’immagine legata alle eccellenze italiane. Questo corso ti guiderà nella comprensione della lingua italiana, nel suo evolversi nell’uso quotidiano ed in rapporto alle diverse funzioni cui è destinata.
★★★★★ (21 ratings)

Introdução ao Controle Moderno
Instituto Tecnológico de Aeronáutica via Coursera
Este curso lhe dará a base necessária para entender técnicas mais avançadas de controle moderno.
Você aprenderá como representar a dinâmica de um sistema no espaço de estados, como analisar um sistema no espaço de estados, como projetar uma realimentação de estado e como projetar um observador de estado.
★★★★★ (11 ratings)

Whole genome sequencing of bacterial genomes – tools and applications
Technical University of Denmark (DTU) via Coursera
The course will give the learners a basis to understand and be acquainted with WGS applications in surveillance of bacteria including species identification, typing and characterization of antimicrobial resistance and virulence traits as well as plasmid characterization.
★★★★★ (17 ratings)

Neural Networks and Deep Learning
deeplearning.ai via Coursera
If you want to break into cutting-edge AI, this course will help you do so. Deep learning engineers are highly sought after, and mastering deep learning will give you numerous new career opportunities. Deep learning is also a new “superpower” that will let you build AI systems that just weren’t possible a few years ago.
★★★★★ (10 ratings)

Deciphering Secrets: Unlocking the Manuscripts of Medieval Toledo (Spain)
Universidad Carlos iii de Madrid via edX
This course evaluates the medieval history of Toledo from the reign of King Alfonso “The Wise” (1252-1284) until the creation of the blood purity statutes in the 1450s.
★★★★★ (11 ratings)

Python for Data Science
University of California, San Diego via edX
In the information age, data is all around us. Within this data are answers to compelling questions across many societal domains (politics, business, science, etc.). But if you had access to a large dataset, would you be able to find the answers you seek?
★★★★★ (37 ratings)