The document discusses ideas for using social networks for language teaching activities. It lists 6 main activities: 1) personalizing a profile page by embedding or linking content, 2) holding forum discussions, 3) forming and participating in groups, 4) uploading photos, documents and embedding videos, 5) commenting on other members' content, and 6) keeping a blog. These activities can be done using the base functionality of social networks or third-party applications.