Salters Advanced Chemistry
I've made a list of the units and added links to all the websites I found useful for each one.
AS websites topic-by-topic
A2 websites topic-by-topic
Exam board website

AS Part One
Download this 3D molecule-viewer
Help for Chemical Ideas 3.3: The Shapes of Molecules
More help for Chemical Ideas 3.3: The Shapes of Molecules

A2 Part One
Designer Polymers Activity DP2.1: Making Nylon
Chemical Ideas 13.8: Amines and Amides
Chemical Storylines DP1 Designer Polymers
Chemical Storylines EP1 Christopher's Story
Chemical Storylines EP2 Protein Building
Help for Chemical Ideas 13.9: Amino Acids
More help for Chemical Ideas 13.9: Amino Acids
Chemical Storylines EP2 Summary of words in bold on p144-p147

Chemical theory for The Steel Story (SS) module from www.chemguide.co.uk
ChemGuide homepage
Complexes
The shapes of complexes
Reaction mechanisms