Written by Simon Slangen Over the past months, weve written quite a few PDF manuals for you, on all kinds of diverging subjects, including BitTorrent, iTunes, iPhone, Twitter, Mac, Linux, Photoshop and several other topics.Initially available only for subscribers, there are now multiple manuals released every month, for everyone to enjoy. After releasing 15 manuals and nearly half a million downloads we thought it was about time to look back and review what has been published so far.Enjoy! No si