help on linked list example

#include <stdio.h>
//definiram strukturo node (vozel)
struct node
{
	int amount;
	struct node *next;
	char *title;
};

//prototipi funkcij
struct node *add(struct node*);
struct node *display(struct node*);


int main(int argc, char *argv[])
{
	struct node *head;
	head->title="test";
	head->amount=5;
	add(head);
	return 0;
}

//funkcija za izpis seznama zaloge
struct node *display(struct node *head)
{
	printf("\nIZPIS SEZNAMA ZALOGE:\n");
	struct node *z;
	z = head;
	while(z != NULL)
	{
		printf("%d....Title: %s \t Amount: %d\n", z->title, z->amount);
		z = z->next;
	}
	printf("\n\n");
	return head;
}

//funkcija za dodajanje elementa na konec linked lista
struct node *add(struct node *head)
{
	struct node *new, *first;
	printf("Title: ");
	scanf("%s", new->title);
	//scanf("%s", &new->title);		I tried this as well but it didn't seem to help
	printf("Amount: ", new->amount);
	first = head;
	while(head->next != NULL)
	{
		head = head->next;
	}
	head->next = new;
	return first;
}