You can register right away. It is free.

来源: 于 2011-10-18 16:54:22 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

You may also come back to read the transcript of the chat.

For example, here is the transcript of MIT admission official's chat 5 days ago: http://www.artofproblemsolving.com/School/mathjams.php?mj_id=307