Fnd - Browse Apple App Store and iTunes on the Web
Software Product Management Stack - Resources & tools to help you manage your software product
AppRecs - AppRecs sorts through reviews in the App Store and automatically helps you filter out inauthentic results.
The Product Management guide - A book on how to create and ship products that people love
JazzMyApp - Let JazzMyApp surprise you with amazing apps everyday. Try it out yourself.
Product Management Exercises - A repository of product manager job interview exercises