GARDEN: Just found tiny mushroom sprouts popping up garden box

I just found tiny mushroom sprouts popping up in one of of my garden beds this morning.  I was concerned about these being harmful, but apparently they enrich the soil.  They are NOT EDIBLE!! Mushrooms flourish in extra moist soil and new gardeners tend to over water a bit (that would be me).  If you do want to get rid of them, just letting the top half inch of soil dry out between waterings will stop the mushrooms, and will benefit the vegetable plants that cannot get enough oxygen in waterlogged soil.  Another option is to use organic means such as baking soda.  Follow link for details http://en.allexperts.com/q/Lawns-725/mushrooms-1.htm