The website miku-39.jp, the one teased in the description of “Birthday Song For Miku” by MitchieM, has been updated once again to show something new: A blank letter where you can send a message to Miku for her birthday. Got anything special on your mind that you want to say? Simply click the image above to write a letter, or click here.
EDIT: The site is coded in HTML5, so it may appear broken in some unsupported browsers. Firefox or Chrome work best in this case.