Creators can choose how to get paid for videos on Amazon Move helps Amazon boost selection without upfront costs Amazon.com Inc. will let people post videos to its website and earn money from advertising, royalties and other sources, putting the company in more-direct competition with Google’s YouTube. Amazon already offers movies and television programs over the Internet — including its own original productions — to compete with Netflix Inc. The new product will let Amazon give consumers more options about what to watch without an upfront fee because many of…