Lorem Ipsum is the well-known term that stands for typewriter‘s dummy text to demonstrate a certain layout without having to use text that actually means something. This is helpful when trying out new sites. Here is the classic first paragraph:
„Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.“
There is a short introduction at the great online computing dictionary FOLDOC and an ever longer explanation of history at Lorem Ipsum along with a simple generator.
I-R-Genius provides the even more sophisticated Amazing Lorem Ipsum Generator that allow to select how long the sentences should be and if you want to have it as text or HTML.