The video tutorial explains how services like GitHub and GitLab allow users to save local repositories on remote servers and collaborate with others. It covers creating and managing branches, the importance of communication among developers, and the use of pull requests for code review and collaboration. The tutorial emphasizes the need for effective communication and collaboration tools in software development projects.

How can developers review and suggest changes to each other's work in GitHub?

What is a pull request and why is it important in the context of collaborative development?