1 The title is what appears in the index when you open a section of the forum. Tags are keywrods that are associated with a topic, so you can look for similar subjects: http://www.usingenglish.com/forum/tags/
2 A thread is all the messages together- the question and all the replies. There are now two posts in the thread- your question and my answer, so they aren't intercvhangeable.
- For Teachers