Sirdar / Sublime
Fashionable excellent quality patterns designed in house by UK designers. Their yarn is great quality without breaking the bank. Patterns and yarn are thoughtfully designed so that each Sirdar yarn of a given weight knits to the same tension (which 99% of the time is a “standard” tension). This means you can substitute yarns easily with no fuss.
http://www.sirdar.co.uk/
The luxury branch of Sirdar is Sublime, with blends including merino wool, silk and cashmere.
http://sublimeyarns.com/
“Knitting” Magazine
One of the best UK knitting magazines. Trendy patterns in a wide variety of yarn weights, techniques and difficulty levels.
http://www.craftsinstitute.com/knitting
UK Hand Knitting Association
Covers a wide variety of topics to do with Hand Knitting in the UK, including how to knit, patterns, yarns, advice for retailers, and knitting for charity.
http://www.ukhandknitting.com/
Trendy hand made textiles bringing knitting back up to date.