Guides by Lonely Planet - Explore city guides curated by experts.
TLDR - The quickest, easiest way to share articles with friends
Foursquare City Guide - Foursquare City Guide is a Free to use mobile application that will lead you to the perfect spot anytime anywhere around the world.
Winds - Open source & beautiful RSS reader
Lonely Planet - travel guide book publisher
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.