Commercial photography is photography created with the intent of making the end user money; essentially, photography for commerce and business. Most commercial photography ends up being used as advertising for the purchaser, and oftentimes continues to make money for the photographer and client long after the initial payment. I don't consider 'photographs that just put money in your pocket' as commercial photography - as there is often times a bit more planning, professionalism, paperwork, and headache involved. Thankfully, that results in more money in the photographer's pocket. But I definitely think that there is a distinction between for-profit photography as far as commercial and non-commercial go.