If you haven't yet seen the "Authonomy" site, try it! It's run on behalf of a major publisher looking for good material, and it's easy to upload your work - and to read other people's and to comment on it if you wish. I've just uploaded the so-far-completed 40,000 words of my WIP, a political satire with the working title "Overlooked", on which I'm hoping for comments. I'm an old, computer-illiterate technophobe... but uploading the whole thing took me about ten minutes.
The site is STRONGLY recommended. (Whether my novel-in-progress is to be recommended is a judgment I'll leave to others!)