A lot of times if I don't have racks to make stock I'll just sweat open clams in white wine with some aeromatics and you can get a decent amount of liquid. Much better than that bottled stuff, plus you get to eat the clams.
As an aside...this is ridiculously easy stew recipe with easily available ingredients. The garlic bread is so good.
http://www.foodnetwork.com/recipes/m...ad-recipe.html