I love Alice Merlino. She's the first crafty blog I read four years ago: Future Girl
Betz White is a true green crafter. She recycles sweaters and her work is adorable: Betz White
I love Julie from Little Cotton Rabbits. Her bunnies are divine: Little Cotton Rabbits
Check this out for a free crafty magazine: UK Handmade
Here's Hilary's blog. She has amazing social media tips related to the online craft world: Hilary Pullen
Kim at Everything Etsy always has useful posts, whether they are etsy-related, or a helpful round-up of tutorials related to a specific event: EverythingEtsy.com
Pop over to the Sewing Directory where Fiona and Beth have built up a phenomenal directory of advice, tutorials, giveaways, book reviews and everything related to sewing of course! It's a business which has been helped by the Prince's Trust, which also helped me. So make sure you click around.
Some podcasts I have started to watch since summer 2012 - Knitabulls, The Knit Girllls, Round the Twist, and Knitting in Circles.