If you want to participate in Tomorrow's chat, you'll need to sign up to DetecToday first. Go HERE. Once you've signed up, you'll need to log onto Yahoo! Messenger and contact Gerald So's Yahoo I.D. ("g_so") Then you'll be invited to the chat.
Again, the chat is scheduled for Sunday, Feb. 18 at 3:oo Central Time.
Thanks to Gerald for the step-by-step instructions.