Amazon Music
Apart from books, the second product line Amazon introduced back in the 1990s was music CDs. Their catalogue of music is wide and, as you would expect from this company, their pricing is highly competitive and they have great mail order terms.
If you are stuck for a gift for someone but you know their music preferences, what could be better then obtaining either the latest release or a tricky to find CD from the back catalogue of one of their favourite artists or bands.
If you are looking for CDs then this company is definately worth checking out.