e.g. http://ishare.iask.sina.com.cn/c/1871.html But you need a username and then choose any of them to download.
e.g. http://book.sina.com.cn/category/lit/ (here the literature works are mixed with good and bad ones, to choose an appropriate one isn't a easy stuff.)
Last time I saw a Chinese learner wrote that he read some simplised adaption about famous Chinese works for children, but since they are root from those works, they are not childish at all. I think this is another good way to read Chinese literature.
I suggest that you'd better read some famous authors' first, because the usages of their words are more accurate and classic.