Book Stories Often Have Links To Amazon, But Why?

One indie bookstore representative wonders what the ever-loving heck: “Even as people seek out the expertise of indie booksellers, they treat Amazon as the default for book links. Bloggers write about shopping local while linking to Amazon. Authors appeal to bookstores for book tours and sales but announce their books on Facebook with Amazon links (yes, even for a book titled How to Find Love in a Bookshop).”