While reading about copyright issues with blogs, I encountered a mentioned website, so I decided to check it out. PicApp offers free images that can be publicly displayed or published on a blog for free (that means you don't have to pay).
The homepage will list the steps: Find an appropriate picture for your blog by typing in search terms as well as selecting from either the editorial (mostly celebrity) photography or stock photography (flowers, grass etc.); then, select it and embed it and your done.
First off, the library of images is updated constantly with a huge number of photos of virtually everyone who has made some type of a name for themself whether it be Adam Levine, prominent singer for Maroon 5, or Guillermo Quiroz, obscure minor league baseball catcher. Sporting events, concerts, political things, film festivals are all covered comprehensively. Food has some good listings and you'll even find results for specific lakes and mountains. However, one complaint that I do have is the fact that say, logos, a particular brand of pencil sharpener or a small business in Maine is not listed. But they're only human. They can't obtain rights to everything and the thousands or millions of photos that they do offer for free publication do make for an incredible resource.
In addition to this, once you've selected something, publishing it is easy. Click on your favorite image and a box will come up showing a preview, listing the HTML code for embedding and even letting you share the photo with others.
On the other hand, it seems that web designers have tried much too hard on the interface. It's painfully slow in virtually every process.
But in an expensive world, it's nice to know that you don't have to pay for a good image.