Green Card Registration, will be available only online at the State Department dedicated website - No more regular mailing of applications.
From the State Departement Rule for the DV2005:
"Alien petitioners for the Diversity Visa Program will no longer be permitted to submit a petition by mail. Instead, the Department will require that all petitions be submitted to it in an electronic format, using an Internet website dedicated specifically to the submission and receipt of Diversity Visa." Click here to read more about the changes made to this year's American Green Card Lottery Program.