Here are all my posts on the fine-tuning argument:
Here are some further resources on fine tuning:
Robin Collins’ homepage (Collins is a leading expert and defender of the argument).
Victor Stenger’s homepage (Stenger is a physicist and prominent critic of the Fine-Tuning Argument)
Luke Barnes’ posts on fine-tuning – Luke Barnes is a physicist who gives a knowledgable and even handed treatment of the fine-tuning argument and its critics.
The End of Christianity – Which contains a chapter on the argument to design.