"Lomography emphasizes casual, snapshot photography. Characteristics such as over-saturated colors, off-kilter exposure, blurring, "happy accidents," and alternative film processing are often considered part of the "Lomographic Technique." Users are encouraged to take a lighthearted approach to their photography, and use these techniques to document everyday life, as the Lomo LC-A's small size, simple controls, and ability to shoot in low light encourages candid photography, photo reportage, and photo vérité."
in Wikipedia

And that's basically it - lomography is a great way to have even more fun with photography!

Enjoy =)