1) The document discusses the use of internet technologies and computer-mediated communication (CMC) in language teacher education. It covers topics like Moodle, wikis, blogs, and the benefits and challenges of using these tools. 
2) CMC promotes reflective practice among trainees and allows for more in-depth reflection than traditional classrooms. However, online discussions can also descend into "flaming". 
3) Emerging issues include the formal preparation of online teachers and accreditation. Research also shows CMC builds confidence and community among shy trainees while allowing for more direct interaction. Virtual worlds and role-playing show potential as well.