In case all of you didn't notice, i also collects chibi pictures of manga/anime character in my other blog in anime. So what is the definition of chibi ? As wiki say :
Chibi (ちび, can also be written 禿び ) is a Japanese word meaning "short person" or "small child." The word has gained currency amongst fans of manga and anime. Its meaning is of someone or some animal that is small. It can be translated as "little," but is not used the same way as chiisana (tiny, small, little in Japanese)From wiki explanation, we all now that chibi is not just a mini version of a character, but wiki stop at that definition. A chibi is a smaller and cuter version of a character, and its must have that two thing : smaller and cuter. At anime-chibis, i try to fill it with the latest chibi from popular manga/anime around. From shojo manga such Gakuen Alice as to shonen such as Naruto.