Found in 1 comment on Hacker News
aw3c2 · 2013-11-15 · Original thread
OP is abusing HN for affiliate spam. Referer-free links (no endorsement, just battling an [censored]):

http://www.amazon.com/dp/1597492159

http://www.amazon.com/dp/1450580599

http://www.amazon.com/dp/B005T1TX9O

http://www.amazon.com/dp/841522334X

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