It is a very good idea to use images in web design and in content. Images can convey an emotion or a statement far faster than any text could. Images in design such as headers, backgrounds can lend a sense of polish to the design. When it comes to images within content It can also set the reader up with what to expect within the article itself. However, not all images are equal and the better the images used, the better the outcome.
Whenever you look for an image to use, look for images that have been taking with the rule of thirds in mind. A lot of professional photographers use the rule of thirds when taking pictures. A good description of the rule of thirds would be: “an image should be imagined as divided into nine equal parts by two equally-spaced horizontal lines and two equally-spaced vertical lines, and that important compositional elements should be placed along these lines or their intersections.”
If you were to compare two images. One taken with the rule of thirds in mind and one without, you will be able to tell which one is better almost immediately. The right images, can make the difference between a good design and a great design. Take as much care as you would in choosing the image, as you would in any other element of the website. Look at any website or page that you can think looks exceptional, chances are that it will have exception images too.