We're in the process of enabling an exciting new feature for the site. You may have an old .us address, but that won't reach us anymore. From now on, if you want to email me, please use the following address (I've changed the symbols to fight spam bots):
replace () with @ and + with .
The best way to reach Mark or Lynda is still to send them a message through the markandlynda.us website using your markandlynda.us account. I think they check the site more than they check their email!