[Spectre456]

It does advance the story. It is after the events of Tsubasa Cat.

Summary: The black swindler Kaiki Deishu, who once deceived Hitagi, returns to town and spreads the incantation which cursed Nadeko before.

Koyomi's sisters Karen and Tsukihi try to capture Deishu but...

Just so you know, Bakemonogatari is only the first of the series. Calling it the "Monogatari" Series would be more accurate.

They go like this:
Bakemonogatari Volume 1
Bakemonogatari Volume 2 All the arcs we saw in the first season are of these two volumes.
Kizumonogatari <---Prequel, we'll be getting the movie.
Nisemonogatari 1
Nisemonogatari 2 <---Fire Sisters arc
Nekomonogatari Black
Nekomonogatari White <---Yes, we get more Black Hanekawa. All the girls excluding the Fire Sisters get two arcs
Kabukimonogatari <---Mayoi
Hanamonogatari <----Suruga
Otorimonogatari <---Nadeko.
Onimonogatari <---Shinobu
Koimonogatari <---Senjougahara and is supposed to be the end of the series.

And about the translations. I once read one of the translators commenting that translating Nisio Isin's novels wasn't translation hell, but translation abyss. He uses a lot of wordplay with the language which makes it very difficult to understand at times.

[chaotix37]

I am so happy that 2012 can also be the best season because of this. Thanks

[AldNonymous]

it's now on trailer FOR GREAT JUSTICE