also: loop stitch, fur stitch, crocet loop fabric
I really like the following loopy samples. There are different techniques and they can either be crocheted or knitted. The loops can be left as loops or cut and they will not unravel as the way it is worked essentially ties off the ends.

Crochet loop fabric

Samples made by Future Girl:
>> http://www.futuregirl.com/craft_blog/2006/2/loopy-crochet.aspx

Chloe Nightingale posted instructions to Croctet me on how to do the crochet loop stitch:
>> http://www.crochetme.com/loop-stitch-tutorial

Instructions on RU Craft:
>> http://www.rucraft.co.uk/technique_crochet_furstitch.php

Laura Moncur explains how to crochet a bath mat:
>> http://laura.moncur.org/archives/2006/04/21/crocheted-bath-mat/

Woolcrafting features picture instructions:
>> http://www.woolcrafting.com/crochet-loop-stitch.html

These Abominable snowman slippers are just cool:
>> http://thekidneybean.wordpress.com/2008/04/01/abominable-snowman/

Knit loop fabric

Instructions on how to knit a loop stitch tea cosy:
>> http://www.knitting-and.com/knitting/patterns/teacosies/loop-st-cosy.htm

There are some very nice illustrations on how to knit and then crocet the loop fur stitch on this website, but it is in dutch:
>> http://www.jessica-tromp.nl/knittingpatterns_breipatronen/breien_bontsteek_lussensteek_knittingpatterns_loopstitch_furstitch.htm

How to knit a loop stitch washcloth:
>> http://knitting.about.com/od/homepatterns/p/loop-washcloth.htm

Videos

Next Stitch video tutorials for the loop stitch:
>> http://www.nexstitch.com/v_loop_stitch.html
>> http://www.youtube.com/watch?v=7Zxcj99znmA (crochet, silent)
>> http://www.youtube.com/watch?v=ssbkMawpE-M&feature=related (knit)

Learn how to crochet first

>> http://hubpages.com/hub/How-to-Crochet

Books

>> 300 Crochet Stitches Vol. 6
>> New Design in Crochet by Clinton D. Mackenzie
>> Crochet Your Way

Crochet Puff stitch also looks interesting…

YouTube video:
>> http://www.youtube.com/watch?v=u0pHAP5R4PY&feature=fvst