Like software programs. What are the best ones? How much do they cost?
There are several programs available that assist teachers and students with vocal training. These seem to be the most popular and the sites have price information:
http://www.singandsee.com/index.html
http://www.musicmasterworks.com/singing_lesson.html
http://www.carryatune.com/index.php
There's also a possibility that other open source (free) software is available under the GNU General Public License project. These hosting websites collect freeware / shareware / full price software and you might find something under vocal training or singing training.
http://www.thefreecountry.com/
http://www.majorgeeks.com/
http://www.sourceforge.net/
http://www.download.com/
http://www.softpedia.com/
http://www.snapfiles.com/
http://www.sofotex.com/
http://www.tucows.com/
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