"Not A Book" Question!

I'm just wondering if/how I can add articles I've read to SG. I've seen people upload fanfiction and other "not a book" entries and I'm just wondering if it's an easy process or if I have to fill out a forum or something.

edit: I don't read fanfiction, I'm not looking to log fanfiction. Just any articles I come across and enjoyed. I just used fanfiction as an example :)