there are different types of manga, shonen (aimed towards guys) shoujo (aimed towards girls) or yaoi (involving gay couples) onemanga.com is a good place to look, they give descriptions and updates and you can read the new chapters online until u can buy them at a bookstore. but u have to buy them.
You can go onto onemanga com and read alot of manga there or you can go to sunmanga.com or search more websites on google. good luck finding the online manga.
Bible Black
U Can Read It On Manga Reader.com Or Other Websites That Relate 2 Manga Reading But I Prefer Mangareader.com GOOD LUCK BRO.
The best manga I have read is "Girl got game" By Shizuru Seino. It's a shojo manga, so if you are looking for something aimed at boys, this probably isn't a good choice.
Onemanga.com is a good site.
A good site is "narutoget.com".
I love the code geass anime, but I haven't read the manga. Is it any good? You can use http://www.mangahere.com/manga/code_geass_nightmare_of_nunnally/.
List web that you can read manga
Yes go to myanimelist.net and go to manga lists then search the manga titles till one seems ok the read the snopsis
this manga can be read for free at either manga fox, one manga or zen manga :)
You can read it at mangafox.com (so far they only have vol 1)
You can read all the chapters of the manga in manga animea or manga fox.