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Packt publishing special offerBooks 4215 views
My friends at @packtpub have 50% deal on all ebooks until 17/10/13. Use the discount code COL50. http://bit.ly/1bqvB29
I've got a number of their books already. They're usually pretty good.
Sorry, this is a bit of an advert, but I hope it's useful to regular readers.
Disclosure: I'm getting a couple of free ebooks out of publishing this link.