The National Childbirth Trust is a charity with plenty of experience in the demands of newborns.
Cry-sis is an organisation which supports new parents dealing with babies who cry a lot. Call them on 08451 228 669.
La Leche League is a voluntary organisation offering help and advice on breastfeeding
Teach your Child to Sleep by the Millpond Sleep Clinic (also see Getting bedtime back on track) offers a holistic approach to night time crying from newborns (to older children).
The Happiest Baby on the Block by Harvey Karp offers advice for parents of crying newborns based on 'the 5 S's - swaddling, side (or stomach) position, shhhhh, swinging and sucking'
Understanding Your Crying Baby by Sheila Kitzinger aims to show parents of crying baby how they can follow their instinct, not just the book.