How can you correct the mistakes that google, yahoo and mapquest made on the address of our home, directions?

On entering our address to give directions to our home I discovered they have a big error. We live on road, they give directions to a small street which is called a trace; which is way wrong. Since then I have found many mistakes in our community, where do you contact these map companies?How can you correct the mistakes that google, yahoo and mapquest made on the address of our home, directions?
http://maps.google.com/support/bin/reque鈥?/a> %26lt;%26lt;go there to contact google, go here to contact yahoo: http://help.yahoo.com/fast/help/us/maps/鈥?/a> and go here to contact mapquest-http://www.mapquest.com/features/main.ad鈥?/a> or http://www.mapquest.com/features/main.ad鈥?/a>

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