www.learn2knit.co.uk (scroll halfway down the page)
To slip a stitch you literally pass it from one needle to the other rather than knitting it, i.e. is you 'slip' it from the left hand needle to the right.
Using a combination of the two basic stitches (knit and purl), you can create any of the following types of knitted fabric:
(also known as 'stockinette stitch' in American)
Moss stitch (also known as 'seed stitch' in American)
The main thing to remember with ribbing is that knitted stitches are above knitted stitches and purled stitches are above purled stitches.
Working with colour
Horizontal colour stripes
Vertical colour stripes
Basically you use what is called the 'intarsia' method of knitting to create these columns of colour, where you use separate balls (or bits of a ball) of yarn for each bit of colour required.
Finishing off your work
Casting off (also known as 'binding off' in American)
Sewing in ends
Correcting mistakes - how to pick up a dropped stitch