Facebook Local - Discover places to go and events happening near you
Wikivoyage - the free worldwide travel guide that anyone can edit.
TechEvents.co - Tech and startup events aggregator
Triptipedia - Triptipedia is a free collaborative encyclopedia of travel tips, where everyone can browse, save and share tips for better travel!
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Tripadvisor - The Tripadvisor mobile app is available for the Android and iOS platforms. It can be used to create reviews of hotels, restaurants, and to chat with other travelers on Tripadvisor forums.