I've registered my Android Apps on my account following these instructions:
1) Once signed in, click on the My Apps tab and select an existing app or click on the Add a New App button. For a new app, fill in the App title and Category fields and click the Save button.
--> OK DONE.
2) Click the Mobile Ads tab, answer the child-directed question, and click Submit. It's important to note that apps that are directed at children under 13 are not eligible to participate in the Amazon Mobile Ad Network.
--> I can't find the Mobile Ads tab to proceed with this step... The Mobile Ads tab is not appearing anywhere. Thus, I can't get the application key, is there any new method to get it? How can I enable ads on my android app?
Please help ! :)