What are the most famous companies / services for distance learning (courses, webinars)?

Question

IT education

What are the well-known companies (services) in the Russian Federation and abroad for remote online training or education (courses, seminars, webinars, everything via the Internet, remotely) in the following areas:
- high technology;
- web technologies;
- computer science;
- programming;
- natural Sciences;
- management and management;
- chess;
- design (web and graphics);
- usability.
PS Are there online courses, online schools, web-based chess clubs for both adults and children?

Answer 1

Good webinars should be searched on the forums.
Chess is not necessarily online, there are many books/videos/articles written on the practice.
And actually, you need to decide what you specifically need from the listed areas and already look for it.