Guitar Holland is a guitar and bass instruction program taught by James Lenger in downtown Holland.  It is one of two schools where he currently instructs, Guitar Chicago is the other school (www.guitarchicago.com).  Eventually, there will be other schools started up in other cities, news of which can be found at guitarcities.com.
These websites are setup for a couple of reasons.  First, to inform of the program that is being taught.  Second, it can be used as a means of communication between the instructor and student.  Basically, if you have any questions, ask away!