Kupocake
Not really? Then again, I never really went around websites looking for comic book resources. The best ones I've found were through books and just general trial-and-error through hundreds of pages.
Besides, some of the best online tutorials I've found aren't on traditionally comic websites, they're on sites like deviantArt and Tumblr, through other indie comic creators.
The issue there is that I'm not an artist, and definitely not some Ameri-mangaka. Whereas for an artist, non-comic tutorials on perspective and proportions and PhotoShop and such are easily adaptable towards his or her sequential art, it does much less good for an aspiring writer, like myself, although it's still probably good to know. I do seek out information on writing outside of the comic scene, mind you.
The other part of my issue is that I'm in a relatively small town, and making comics isn't really on anyone else's mind. So, for trial and error, I can write script all day and will only be able to find those few errors I realize myself. Without the constant feedback of an artist-partner or, you know, random forum-goers willing to consistently point out my mistakes, I feel as though a good deal of my progression as a writer is dead in the water.
Seijaku_Ishida
On the contrary, I've been finding more and more amazing discussions on longform webcomics. The hashtag #lfwc on twitter has some amazing conversations, and I find Fantasy Comic Portal to be a useful resource and community.
The link provided seems interesting but I don't even have a foot in that door. Might add that to the long-time-lurker list.
Webcomics aren't a direct interest of mine. I'm trying to gear myself for self-publishing, especially via KindleFire and possibly ComixPress. Wave of the future and all, you know.