Lol, seriously, it is now halfway through the anime and yet nobody's posted anything about it? XDD
Kuroko no Basket was created by Fujimaki Tadatoshi, and is currently being serialized in JUMP. This is his debut work - yet it is now selling over thousands over copies in Japan. It's a hit!!
I don't know how many people knew it before the anime was produced. BUT!! After the anime was made, the manga sales started to sky-rocket as it rode the waves. It is now one of the best sellers - it marked 3rd place as of volume 18.
It's a story about high-school basketball, and yeah - the majority of the cast are boys. But they all have different personalities, and the character development is excellent.
Some people say it's similar to Prince of Tennis - but trust me, Kuroko no Basket is much better.