When you are building a website or app you should always be looking at how to cut out as many features as possible. It isn't what features you put in, it is about what features you choose not to implement. You see this mantra in how Apple has designed their great products (iOS, iPhone, iPad). As I've mentioned before, the scope of your project is the thing that you can most often control (compared to time and resources).
Stick to what's truly essential. Good ideas can be tabled. Take whatever you think your product should be and cut it in half. Pare features down until you're left with only the most essential ones. Then do it again.