I'm not sure about anyone else, but I really dislike the setup of all the manga links. They aren't always one line long, and it seems like some flow into others. Perhaps they should be set up by linking to them by letter, and links to new series can be shown on the front page? Any system would be better than this one; it's hard to find what you're looking for.
But other than that, great job, guys! Keep up the great work and the free manga!