Our portable electronic devices have memory that allows them to store thousands of pages of information in the palm of your hand. To a mineral collector a century ago, it would sound like total magic. By storing a library of field collecting sites in the palm of your hand on the Kindle or other device, you\u2019ll never run out of places to go. Perhaps to your surprise, many great guides are available in digital format so you don\u2019t have to bring stacks of field guides or a cumbersome library of dated, out of print texts with you when you get muddy. The rockhound ebook revolution is happening now. Let\u2019s take a look.<\/p>\n