I was going to link to my Bandcamp page on here, but Matt has already very kindly done so - thanks Matt! Bandcamp is a great tool and I found it quite easy to figure it all out. 'AWAL' is also a great website/tool. They basically get your album onto many digital outlets like Itunes, Amazon MP3 without charging an upfront fee - they take a similar cut to Bandcamp. Worth having a look at! I have used them.