In general, the most effective adverts you can do are called “solo” adverts. This suggests that your ad gets sent out to the customer list alone, without and other adverts or content, and with your topic in the topic line. Be cautious, however, of a solo ad that costs little and is sent out to a lot of subscribers. If it appears to good to be true, it is.
Before you place your solo ad, subscribe to the ezine to check out its quality and trustworthiness first. Begin with just one, track the results, and stick to it if they’re good. When you start profiting, re-invest at least half of the profit into higher subscriber base ezines and continue in this direction. Don’t forget to track and tweak your adverts so as to truly optimize your response number.