Adobe Photoshop
Adding text to a textured graphic image using a Displacement Map can result in a much more realistic image.
Check out this quick tutorial to learn how.
Resources
Pixeden has a great collection of five high-resolution concrete textures for use in your designs you can download absolutely free.
Adobe Photoshop
Grab a copy of this collection of six natural looking seamless wood patterns for use in your Photoshop designs. They make creating natural looking backgrounds easy!
Resources
Grab the Creased White Paper high-res texture above, free for any use. The texture image is 10 x 6.5 inches at 300dpi, making it perfect for commercial print use.
While you’re there, check out all the other high-quality textures at WildTextures. I love the site because it appears to focus on quality rather than quantity like most similar sites. Textures are conveniently organized by subject, such as: wood, metal, leather, stone, grunge, fabric, and plenty more. Definitely a site worth bookmarking!
Resources
Adobe Photoshop
There are very few tutorials that I come across which I find might actually be useful. Don’t get me wrong, you can learn a lot going through a tutorial even when the end result isn’t very useful in your day-to-day work. This stone textured text tutorial I found at DesignM.ag is one of the few exceptions. In going through the tutorial, I immediately thought of several uses (such as divider pages in long documents. I also loved the flexibility it offers you — you don’t have to follow the tutorial to the letter to get great results.
Resources
Resources
Having a large collection of textures on hand can be a huge time-saver, and add a nice touch to a design. I have tons of them on an external hard drive, all of which were obtained either by shooting with my camera, or downloading for free off the Web.
GraphicMania has a nice collection of Old Paper textures to help get our collection started.
Resources
Caleb Kimbrough has released his latest set of free high-resolution textures. Five beautiful grungy looking brick walls are available for download here.
Each image is of very high quality, and measures in at 3888 x 2592 pixels. Don’t forget to honor the Creative Commons license and attribute the images to the author if you use them.
Resources
You know what they say: “Spring showers bring awesome textures to everyone… and flowers – for free!” 
The latest Bittbox Free Texture Tuesday selection available is Rainy Day, five beautiful high-resolution raindrop textures available for download, and ready to use in your next Photoshop project.