Pixabay - A royalty free image search website.

This website was posted on Free Tech for Teachers.  All you have to do is create an account, make sure that you don't select the "Sponsored Images" - and it works just great for notes, blogs, websites, or any other reason you might need an image to "spruce" up your documents.

Webste: http://pixabay.com/

Cost:  Free - but you will need to sign up for a free account.

Description:  Great image searching website for free images that can be downloaded to your computer.  Since these are user contributed, you will need to filter the images before you use them.  Don't recommend having students create accounts, but think it would be fine for teachers/staff....but I guess I would leave it up to you.
The only real annoying thing about it is that you have to be careful not to click on the sponsored images.  These cost to use.

How I used it:  I used it to find illustrations for a quiz I created.  Worked great.  Downloaded the pictures, and then uploaded them to the digital quiz.  Funny thing is that the pictures looked great, but the students could not login to their digital quiz.  Long story.

Need some user submissions.  Please forward things to me and fill out the form attached below.