The following link is great when you need just a dummy image. Just put the link in your image source attribute and alter the width and height.
Twitter has affected the way web sites are being designed today by giving us the Twitter Bootstrap framework. Along with Twitter Bootstrap comes Font Awesome which basically is lots of icons stored in a font.
When you need text to fill up your layout pages there are many options available. Take a look at the links below.
Samuel L. Ipsum