CoFoundersLab Discuss - Where 300,000+ entrepreneurs get their questions answered
Going Indie - A complete guide to becoming an indie software developer
Codesign.io - Visual feedback on everything
Startup Collections - Resources & tools for entrepreneurs, designers & developers
The Embedded Entrepreneur Book - How to build an audience-driven business
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.