Today's Sew Satuday is specifically for those interested in learning and/or improving their sewing skills.
Several years ago I recall coming across this site and found it extremely useful. The site is sewing.org. Their SEW-lutions Guidelines are easy to read PDF's that you can download and make your own guide book by storing them in a binder. The guides cover very basic sewing information including tools needed and progress to more complicated information such as installing invisible zippers.
Check out the site and learn a new SEW-lution!