It’s been a transformative week in the world of travel guidebooks. First Lonely Planet is sold to a reclusive U.S. billionaire and now Google ceases production and publication of Frommer’s print travel guidebooks.

The news came as a shock to travelers and the tech world alike, which learned that Google was killing another product, Reader, just one week earlier. Industry followers; however, might be less surprised by Google’s decision as travel content makes the ongoing shift to the digital world.

Here’s what Twitter had to say about the loss of many’s favorite travel guidebook: