Related Clues:

• They're often classified
• Much of magazines
• Spots on the TV
• Some inserts
• Trips might cause them
• Super Bowl showpieces
• Praises for products
• Coupon sites
• Much of bulk mail
• They may pop up nowadays
• Some trailers
• Classified material
• Commercials, e.g.
• Spots that can be pricey
• Campaign expense