I thought Amazon (and google) blockers may be interested in these extracts from today's Threatpost dot com article "U.S. and Russia--Not China--Lead List of Malicious Hosting Providers"
"...the appearance of Amazon in the top 10 list of providers hosting the highest concentration of infected Web sites. These are the kind of sites used in drive-by download attacks and to deliver exploits from exploit packs. Amazon, with more than two million IPs, ranks fourth in the list of providers hosting infected sites. Also on that list is Google, which comes in at number seven. The top spot belongs to Mail.ru, a Russian hosting provider."
The gist of the article is that "...if you're looking for the most malicious hosting providers on the Web, you won't find any of the top 10 in China. In fact, the United States and Russia have many more bad hosting providers in the top 20 than China does."
"...phishing sites ... four of the top 10 hosting providers being located in America."
Admittedly most of this is aimed at windows/mac/mobile desktop visitors, not web site hosts, but remember: they have to get new servers from somewhere and we are amongst the targets!