I subscribe to knit n style. It has lots of tips, feature articles and patterns. What I like is that it shows the front AND BACK of the FO, which gives you an idea of the drape, etc.
Many of the tips are geared toward beginning/intermediate knitters so I don't know if it would be a big benefit to you.
Knit 2, Purl 2, Knit 2, Purl 2, Knit 3......Darn!