Lonely Planet's online community, the Thorn Tree, was created in 1996. It is named for a tree (Acacia xanthophloea) that has been used as a message board for the city of , Kenya since 1902. The tree still exists in the . It is used by over 600,000 travelers to share their experiences and look for advice. Thorn Tree has many different forum categories including different countries, places to visit depending on one's interests, travel buddies, and Lonely Planet support. The Lonely Planet website includes travel articles, destination and point of interest guides, hotel, hostel and accommodations listings, and the ability to rate and review sites and restaurants.
... we have tons of information—all of Lonely Planet's historic content. And we're building really great technology to analyze that content and understand all the ways you can put it together ... You're in Rome, standing by the Colosseum. It's 3 P.M. on a Thursday in summer. You open your phone, and it says, "Hey, glad you enjoyed the Colosseum, which was on the itinerary we helped you make. We know you love coffee. Time for a cappuccino! The best cappuccino place in Rome is two blocks away. Here are walking instructions. And while you're walking, you should know: Don't order a cappuccino in the afternoon in Italy; they only drink them for breakfast, and they're going to think you're a stupid American. So you should get a macchiato. And this is how you ask for it." ... we've got most of the people who can deliver that kind of experience. And Daniel [Houghton] is finding more."
In 2009, Lonely Planet began publishing a monthly travel magazine called in the UK, and in 2010, it launched the Indian and the Argentine editions. Its Korean edition, with a digital edition for iPad, was launched in March 2011. Its Chinese version was launched in Mainland China in Aug, 2012. In October 2014, Lonely Planet announced a U.S. version of the travel magazine.