I have written a book that includes content that is relevant to a very prominent website. I have contacted the website's CEO, who told me that I'd have to send them my manuscript for their approval in order to use their name (and screenshots from the website). I'd really like to reference them in both the title and the text of the book, but I'm unsure as to whether or not they'll approve of my book. If I had to bet, I'd say they'd turn me down.
Is this proper? Do I need their approval? For example, if the book was about eBay (which it is not), and I wanted the title to be "Exploring eBay: The New Online Marketplace", would I need their approval?
If I was to use the name "eBay" in the introduction and subsequent chapters of the book, would I need their approval?
Would it be illegal for me to include screenshots from their website without their approval?
Thanks in advance for any advice you can give. I'm very confused.