Yes, it's now popular all over the world and it so addictive to young adults specially those who loved cartoon drawings.  I ask myself "How" it became popular?.  Ive been in work in animation studio and because of that I exposed to western and japanese comic book.  During 2 years of experience I observe that japanese comic book or a so called "MANGA" is so popular, many of my friends have them.  Well, Im not saying western comic is not good, I admire also the way how to draw it.  But as we can see, even in internet worldwide, it is still MANGA sites are always visited.  When you look at it at first glance it is just a simple comic art or somewhat a caricature, but How it became popular?

Let's try to know the history behind it.

What is origin of manga? The answer depends on how you define "manga." The term itself was popularized by famous woodblock print artist Hokusai, but, to a popular myth, it was not invented by him. The word consists of two Chinese characters-the first meaning "to even yourself" or "lax" and the second meaning "picture" and is used to describe various comical images for less two centuries.

A thousand years before Hokusai applied the term to a collection of his less serious works, there is "cartoonish" drawings to be found in Japan, but whether or not the picture drawn in manga style constitutes a deceptive question. The picture becomes clearer when we limit our discussion to works that fit American cartoonist Will Eisner's definition of comics as "sequential art." The first clear example of this type of sequential art is the picture scrolls of medieval Japan, that combine pictures and text to tell stories or describe events. These scrolls look and work like modern manga or comics in many ways, with one crucial difference: whereas modern-day manga are made for mass consumption, picture scrolls are singular works of art produced for an elite audience.

you can visit these site for more information

http://www.matt-thorn.com/mangagaku/history.html

http://en.wikipedia.org/wiki/History_of_manga.

The WWII has a big effect in booming manga comics in Japan, after the war there are two comic series which influence a lot on future manga history. one is Osamu Tezuka's "Mighty Atom" better known as ASTROBOY in U.S.  The other one is Machiko Hasegawa's  Sazae-san.
more on www.wikipedia.com

For me, as I describe the manga, it is complete it has a nice story, nice characters, nice sense of humor, nice workart and the drawings looks like animating. Eventhough, some are exagerated but it is still nice to read at, it catches the reader. I like also the way how they plot the perspective view of the scene, the character expression, especially the big eye on which manga is typically known.

Its addictive because of the reader always see nice.  Story, drawing, characters, fashion it was all nice to look at.  The hairstyle even it is not good to have that in real but in manga it's cool.  The clothes and costumes it's to look it on manga but not in real.  Well we can say that, that's what can ART can do, doing beyond reality.

Twelve years before starting the story, the Nine-Tailed Fox demon, the strongest of the Tailed beasts, attacked the village of Konohagakure, the Village Hidden in the leaves. Minato Namikaze, the Fourth Hokage of Konoha and leaders at the time, sacrificed his own life to seal the demon inside his newborn son, Naruto Uzumaki, to protect the Hidden Leaf Village.

Even had Minato wanted Naruto to be viewed as a hero, who saved the village, the villagers could not see him beyond the monster that destroyed their home. After the death Minato, Hiruzen Sarutobi, the Third Hokage, had taken in terms of village once again and created a mandate from anyone preventing telling Naruto about the demon within him. Though Naruto found some friends with children his age, though they came to her attention, following in their parents' example without even knowing anything about the demon fox themselves .

When Naruto was admitted to the ninja Academy, he was befriended by his Chunin instructor, Iruka notice. Iruka was the first person to believe in Naruto, and ultimately become a father-figure for him to look up.

Bleach (Burīchi?, Romanized as bleaching in Japan) is a Japanese manga series written and photo by Tite Cuba. Bleach following the Adventures of Ichigo Kurosaki after he accidentally obtains the power of a shinigami a Japanese death personification similar to the brute-splendent from Rukia Kuchiki. Gaining abilities forces him to take on roles in defending the people from evil spirits and guiding spirit in the afterlife ago.

Bleach is continuously serialized in the Japanese manga anthology Weekly Shōnen Jump since August 2001 and is collected in 38 tankōbon volume as of April 2009. Since its publication, bleach has spawned a substantial media franchise. The manga was adapted to an animated television series produced by Studio Pierrot which is still ongoing in Japan as it adapts the story from the manga. The series has spawned two original video Animations (OVAs), three animated feature films, seven stone musicals, and many video games, as well as prompted the release of many types of bleaching related goods.

One piece is a long-term running shōnen manga pictures and written by Eiichiro Oda, that serialized in Weekly Shōnen Jump magazine since August 4, 1997. The individual chapters were published tankōbon volume of Shueisha, first released on December 24, 1997 and 53 volumes released as of March 4, 2009. One of the following pieces of Adventures of Monkey D. Luffy, a 17-year-old boy, who gained supernatural abilities by eating a colorful fruit, and his ragtag crew of heroic Pirates, named the straw hats. Luffy's greatest ambition is to get the world ultimate treasure, One piece, and thus become the next King of Pirates. When creating a series, ode is heavily influenced by manga Dragon Ball.

Here's some manga links:

www.onemanga.com
www.narutocentral.com
www.narutofan.com
www.narutoflicks.com
www.manga.com