The practice of selling license exceptions became a hot topic when I co-signed Knowledge Ecology International's letter warning that Oracle's purchase of MySQL (plus the rest of Sun) might not be good for MySQL. As the following article explains, my feelings about selling license exceptions are mixed. Clearly it is possible to develop powerful and complex software packages under the GNU GPL without selling exceptions, and we do this. MySQL can be developed this way too. However, selling exceptions has been used by MySQL developers. Who should decide whether to continue this?