Amazon has introduced a form of censorship in its book listings – according to a statement the company has just issued 'In consideration of our entire customer base, we exclude “adult” material from appearing in some searches and best seller lists. Since these lists are generated using sales ranks, adult materials must also be excluded from that feature.' We know at least one IS&T author whose book, which contains a 'gay crime' element, has already fallen foul of this new policy…

If you want to lodge a protest about this, vote here
http://www.thepetitionsite.com/1/in-protest-at-amazons-new-adult-policy