Content Marketing Playbook - Built from 12 years and 83,232,485 visits. By Hiten Shah.
ASO Tools by AppFollow - Tools for App Store Optimization in App Store & Google Play
App Marketing Daily - Hacker News for App Marketing
App Launch Checklist - Planning tool for launching your app successfully
immerj - Create your next marketing plan in minutes
StorePreviewer - See how your app will look like on the App Store