Show (full) description on the product list page

# enable description attribute in product listing
admin > Catalod->Attributes-> Manage Attributes
description attribute
Set "Used in product listing" to "Yes"
Save

# edit tamplate
./app/design/frontend/default/default/template/catalog/product/list.phtml
<?php echo nl2br($this->htmlEscape($_product->getShortDescription())) ?>
<?php echo nl2br($this->htmlEscape($_product->getDescription())) ?>

# Link
http://marius-strajeru.blogspot.com/2009/11/show-description-in-product-list-page.html