I am an amazon addict but since reading this
www.guardian.co.uk/technology/2012/apr/04/amazon-british-operation-corporation-tax
have been buying books at my local shop, surprisingly they stocked what I was after and had only to pop in to pick them up (phoned first to make sure they had them, they'll get things in if you ask).
Another online place to buy books is
www.abebooks.co.uk/?cm_ven=Google&cm_cat=UBT&cm_pla=abebooks.&cm_ite=abebooks.
So I now search on Amazon but buy elsewhere if I can, most products can be found on other sites if you look.
Amazon pays no UK corporation tax on the £3bn it takes out of the economy -Why should Luxembourg profit from my purchases?