Sewing Techniques and Stitches.
This tutorial on How to Mark Fabric Before Cutting is really handy for both beginner and experienced sewers. Follow the link for the tutorial; http://www.ehow.com/how_12343111_learn-sew-mark-fabric-before-cut.html
If you would like to learn or brush up on other basic sewing skills and techniques go here; Sewing Techniques & Stitches to find the skill you would like to work on.
If you would like to see easy/ beginner sewing projects go here; Easy/Beginner Projects
If you would like to see challenging/Experienced projects sewing go here; Challenging/Experienced Projects