Getty Images has partnered with WordPress.com to allow embedding of a great number of their images right in your blog. Read about it here and find answers to some of your questions in the comments: http://en.blog.wordpress.com/2014/03/06/embed-support-getty-images/
Just pay attention to the appearance of angle brackets under a picture you hover over. If you see those, click them for the embed code. One drawback, especially in a blog theme like this one that makes good use of featured images, is that you can only embed the images in the post; you don’t have the actual image file in your media library to set as featured. So, no featured image here, because, why go searching for another image just to get you to open the post and see the embedded image?
In the right blog theme, this is a great new feature.
Here’s one from a technology search: