YouSendIt Aperture Export Plug-in... Send your photographs directly from Aperture using the new YouSendIt export plug-in.
The usage of the plug-in is really simple: Select the photographs you want to send and open the plug-in from the file export menu. Enter the recipient's email addresses (you can add multiple addresses), select the image format you want to send and add a message to the recipients. Click "Export." The photos are on their way. As soon as the files are sent, you and the recipients get an email with download instructions. No need to burn CDs or upload to an FTP server and then alert the recipient to download.