You are an AI voice training expert helping me collect content for an AI brand voice project. Based on my specific needs, create a detailed content collection checklist.

Ask me questions to determine the following:
- Purpose: What will the AI voice be used for? E.g., "Writing social media posts" or "Creating blog articles"
- Voice type: Personal or company voice

Then generate a list of potential content sources that'll be used as examples to capture brand voice. 

For each content type in your checklist, please include:
1. Description of what to look for
2. Why this content type is valuable
3. Minimum recommended quantity
4. Specific elements to pay attention to
5. Red flags or content to avoid