jQuery Image Sliders
CSS rounded corners are still not fully supported by all browsers. I used CurvyCorners to render the rounded corners in browsers that do not support this feature yet.
Samantha Warren at Badass Ideas is offering a set of social icons in a layered Photoshop file. These icons can be quickly manipulated to fit your design.
Internet Marketing Strategies has a fantastic video that introduces the concept of affiliate marketing using Clickbank. Joe Hughes walks you through the process of selecting and promoting an affiliate product. He also explains how to use keyword research to find good products to promote.
Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.