You can draw the manga with pencil and pen and scan it, or you can draw it with a computer mouse. Drawing it with pencil is easier, unless you dont have a scanner. There are many websites where you can post your manga. (such as deviantart, and I think onemanga might let you post your own.) If you want your own website you can either go to freewebs, (or a similar Web Hosting service) or if you know how you can set up your own server. I would suggest freewebs. Once you do that just upload your manga and start advertising it.
You can't.
'Witch Blade' manga can be read online on legal manga platforms such as Crunchyroll or Comixology. Make sure to support the creators by using official channels to access and read the manga.
One can view the manga One Piece online on the following websites: MangaSee, Manga Fox, Manga Stream, MangaHit, and many other free online manga resources.
You can read the Kingdom Hearts manga online at Mangafox.com
You can buy the manga from Googleplay.
Mangafox
Its an online university who teaches how to draw manga.
There is a manga for Naruto SD. See the related link for the online manga.
Have you tried Manga Fox.com?
you can read manga online at the website; www.onemanga.com
Gaia Online has some pretty good manga avatars
Any online manga source such as MangaFox.