I just wanted to share the wiki I created for legal places to find Japanese media. (Not judging those who watch or read things illegally. Just a source for those looking for legal sources.) I've been adding to it over time. Feel free to contribute!

http://japanese-media-hub.wikia.com/wiki...a_Hub_Wiki

A good idea. I'll be honest and say that I have never messed with a wiki in my life (and don't care to learn how to use one, at the moment), but I can give a couple of official manga magazine sites:
http://comic-meteor.jp/
http://www.hanayumeonline.com/

Both of these sites have some content available for free; either for the past couple chapters, or for every chapter that hasn't been compiled into a book yet. I know that other magazines do this as well, I just don't have anymore specific examples.

If you or someone else wish to put them on the wiki, please do.

Here's another one for manga:
http://mangag.com/

Thank you guys!!

Yes, I use both mangag and hanayume online. They are great! I never knew about http://comic-meteor.jp/. Thanks!

There are tons of great sources out there for manga! Although I haven't gotten around to adding all of them to the wiki yet, I've bookmarked my favorites in my immersion hub on my blog: http://petitelumi.blogspot.com/p/immersion-hub.html. I plan to eventually add all the links on this page into the wiki too. I just added mangag to the wiki recently.

I totally understand. This is the first time I've actually made or contributed to a wiki myself. I usually just read them. Thanks for sharing that link! I see some titles on Comic Meteor that I'm interested in already. (My to-read list keeps growing!)