Photoshop Grunge Brushes
This selection of six Photoshop grunge brushes, featuring cracks and dirt effects, drawn by hand with a wacom tablet and pen, these have been used on the new Free powerpoint pages website on the Grunge powerpoints pages section.
The zip file really pretty small (24k). These photoshop grunge brushes are good for Aging Photographs as can be see in my photoshop tutorials and generally adding a dirty effect to images or to fonts. I have also written a Photoshop Tutorial which might help out if you are rotating these brushes using small canvas sizes.
See the main Grunge photoshop brushes page for a full listing of the Grunge brushes available on my site.