Alison

Alison is a free online learning platform offering courses with certificates, describing itself as having 15 million graduates. Course categories include information technology, health, language, business, management, personal development, sales and marketing, engineering and construction, and teaching and academics, alongside career guides, English and psychometric tests, a resume builder, webinars and an Alison for Business offering for teams. Learners can also purchase Alison Premium to remove ads or buy gift certificates for others.

Its ads.txt file lists 63 authorized ad systems. The site also lists career pathways by field, such as health science, finance, information technology and education and training, each showing a count of related career profiles.