Because it is expensive to make, most animation comes from professional companies. However, independent animators have existed since the 1950s in America, with many of those people entering the professional industry. In Europe, the independent movement has existed since the 1910s, with animators like pre-revolutionary Russia's Ladislas Starevich and Germany's Lotte Reiniger.
Many people use a computer animation program called Adobe Flash to create animations. Flash uses a combination of drawing and computer graphics to make animations. Many animations on the internet are made in Flash. Most animators on the internet do not work for professional companies.
Many television shows, especially those made for children, use limited animation. Companies such as UPA and Hanna-Barbera Productions do this. Simple, limited movement makes the images easier to draw, which allows quicker and cheaper production of animation.