Both ebay and CL have their place.
Clothes - Ebay
Books - Amazon
Large items (Furniture, appliances, etc.) Craigslist. They pick the items up themselves so you don't have to worry about the hassle.
Clothes - Ebay
Books - Amazon
Large items (Furniture, appliances, etc.) Craigslist. They pick the items up themselves so you don't have to worry about the hassle.