Hello my friend:
Abdellah, those are two very good questions. Here are the answers:
I intentionally make the interviews a certain length on purpose. You may want to see longer interviews, but it's my readers who dictate what you see on my site.
For example, my readers dictate, the most popular articles, authors, categories, etc. I have nothing to do with it.
Many of my readers have told me via e-mail they think my interviews are the perfect length...not too long as to become a chore to read, and long enough to provide valuable information.
Regarding audio, I also posed that question to my readers. They overwhelmingly voted that I should leave the format the way it is. Their reasoning: People visit an article directory to read articles.
It doesn't get any simpler than that!
When my readers speak, I ALWAYS listen!
Thanks for the questions!
All the best,
Dale King