I haven't really read the other posts, just scanned through.
But I think that manga shouldn't be online. There's several reasons, so this'll probably turn into a rant... So you've been warned...
Just because then the manga artist isn't getting any money out of it but thousands of people can view it and all the time and effort put into the making of it it seems worthless if you're not gonna profit, with people reading online instead of going and buying it online or from a comic store with a manga section, WH smiths, Waterstones, hey, even ASDA-entertainment sells Death Note manga. I could see why people would read online if it was hard to get a hold of in countries outside Japan etc. But it isn't really. Also, if noone's buying the manga from the comic stores etc, companies will stop shipping manga to certain places where there isn't enough interest. Same with anime, fair enough watching a couple episodes online or whatever, otherwiseyou wouldn't know if the anime was for you, to your tastes. But after testing if you like it, I feel you should buy it, to support the creators etc... Also you can start a collection etc, with all your favourite anime/manga. ^^!
Feel free to disagree with me etc. :] Everyone is entitled to their own opinion. I can see why people do watch and read online, manga can be expensive etc... But it's worth it to purchase the manga etc. That's all really. Rant over. :]