Suggestions for subject-specific ads for Weebly blog?


I have a two-year old Weebly blog about the Italian lifestyle that has a fairly steady following with around 15,000 unique visitors and 40,000 page views a month. In a poll, my readers expressed a keen interest in ads targeting our common interests–namely, travel products, Italian imports, ceramics, Olive Oils, Pasta, pizza making accessories, Italian travel services, hotels, etc. What ad service would I use? Also, do you think my numbers it’s at a level that would make such monetization worth the effort?