SmugMug recently released the Source RAW file management add-on. PSD and PSB file formats have now been added to this feature.
"Photoshop users, rejoice! SmugMug Source—our workflow add-on that lets you upload, organize, and manage RAW files from anywhere—now includes support for PSD and PSB files. These files are visualized on Source just like RAWs are, too. Now all your working files have a safe, secure, and easily searchable home that’s accessible from any device. So what are you waiting for?" [SmugMug]
Do you have an online portfolio? If not, or if you are not happy with the one you have, I highly recommend SmugMug. The starter plan is quite affordable and full-featured. Try for free.