Mailboxixchange have succeeded in bringing the widest selection of residential mailboxes and commercial mailboxes to the Internet. (its pronounced Mail Box Exchange)
Browsing through there comprehensive website shows a vast array of mailboxes and they are categorized under logical main headings, e.g wall mounted mailboxes, column mailboxes plus many more.
A large number of testimonials are present on the site, which goes to show that this company helps to deliver more than just the mail, they know a fair bit about keeping their customers happy as well.
In summary I would have to say that if you are looking for a mailbox, this website would be a great place to check out.