One of the great things about using digital technology and the Internet is how easy it is to find artwork and vector clip art that you can use for digital scrapbooking, presentations, documents, or to print and use in traditional paper projects.
Another interesting place to look at for your image needs is Microsoft Office ClipArt in the Microsoft Office Program. As per the EULA of the Office Program, you can use these images in any document or for any work as long as you are not distributing only the image. Microsoft also allows access to its huge database of quality clipart and graphics at office.com. These images are of high resolution and some are even in vector format. You can download images and use them in your website or blog without a hassle. The Office.com Terms also mention that you can use these images in any document, even if it is for commercial purposes.
Some designers actually make their available online in its original format, so that you can download it and make some changes, as well as resize it, though most will only supply a high resolution version that can be used up to a certain size poster. A Google search for.svg clip art will give you vector art you can use in Inkscape, and in fact some of it is exceptional.