Way too much information required to be given them to get this. It looks really suspicious to me. It may be perfectly safe but no thanks.
e-mail address.
No That does not work, I tried it. You have to give full name, full address, company name, type of business, number of employees, and on and on.
Not sure which way you decided to go but the connect with only has two options Work email - and Download button Or Download with LinkedIn button. Obviously if you had a linkedin account all that information on linkedin would be available.
I have no desire to get the ebook, but it looks like giving an email address (work, active work email) and click the download button. So are you saying that clicking the download button seeks more information ?
I think they are looking for more information, linkedin, business people only for the contact information.