This site has it all! Loads of crochet stitches plus knit, tatting, lace making and much more! This stitch is called Crossed trebles. The site this comes from is full of wonderful stitches, tips and tricks. It's certainly worth a look around.
This is my favorite bracelet pattern - it works up in less than 15 minutes and can be crocheted to any size easily. This free pattern will explain how you can make one too! Thread: Aunt Lydia’s Crochet Thread, Fashion 3 (Super Fine Hook: mm (B)