Don't take my word for it.

The trouble with advertising isn't necessarily that it doesn't always work. The problem is identifying what works for you and your budget and your personal results. Someone you know may have had great success, or think they have, advertising in one place or the other. But, unfortunately what is good for the goose isn't always good for gander. You will be able to watch your own realtime results for all your advertising as it happens. Check out this AllBusiness blog entry about advertising in newspapers.