Optimize images

You need to optimize your images to save on download speed and loading time of a page, images can take up most of the time to load the page.  a good size is 72pi any more and the file is too big and high quality which a person could take print and use as their own,  dimensions of the photo a good size is 1024 x768 or 1280 x 1024px is a good size uploading to Facebook, twitter, and forums. But for your own websites you'll need to make the image the same size as it will be on the screen. For example if you want to put an image on the banner and the banner is 960x200px that's what you would make your image.