Prior to this, Mr. Koets was a computer systems engineer in the Systems Engineering and Integration division of Martin Marietta in the Washington, D.C., area. In addition to developing Visual Basic applications, Mr. Koets has experience in many other areas including Visual C++, computer networking, client/server application design, parallel processing, and performance analysis. He, too, has previous experience building pre-Web systems that were Internet aware. Mr. Koets is an adjunct faculty member at Grand Rapids Community College, where he teaches advanced Visual Basic, and has prior teaching experience ranging from computer programming and engineering laboratory classes to Lotus Notes training courses.