One of my Exchange/Office 365 developer customer shared this with me - that my MSDN blog (updated blog is https://blogs.msdn.microsoft.com/deva/) is listed in Exchange book along with other star Exchange bloggers/communities.
Wow moment. Thank you so much @John Paul Mueller
Written by John Paul Mueller, published by Wiley @ October 2008 and here is the reference: http://as.wiley.com/WileyCDA/WileyTitle/productCd-0470398663.html
Can’t ask for more. Delighted