Ravelry: lucille baby cardigan (free pattern)
Isabelles Collection double knit cardigan, starts from £5.99
Fabrique Romantique: Sweaters and socks for Puck and other sweeties
Cute rainbow-striped knit baby sweater
knitting and crochet charts. So many cool patterns here!
Knit cabled child cardigan hoodie sweater
Faster way to knit a baby sweater. Great tutorial and picture.