When you begin your search for the right design or media house, start out by knowing what you want and like. If you visit the web site of a design firm and all of their projects look the same plus it's a look you don't like, chances are they're not a good match for you! Even if you like their look, do you really want a web site or Ad that is less memorable and doesn't stand out because it looks exactly like any number of others?
Source: Choosing the Right Design or Media House to Promote your Company