This is slightly different to the RSS feed sponsorship method and essentially entails placing advertising banners within your RSS feed. This can be set up through a third party advertising network, such as Fusion Ads or Buy Sell Ads.

Advantages: Unlike with RSS sponsorship, banner advertising within your RSS feed is a lot easier to acquire. There are loads of advertising networks that you can promote on and setting things up isn't too difficult - you can often get a WordPress plugin that will do it for you.

Another great thing about advertising within your RSS feed is that you're not going to be exposing new readers to the ads, so it can give you an opportunity to make subscribers aware that there might be ads shown to them in advance.

Disadvantages: Any kind of monetization within your RSS feed will often require a sizeable subscribers list, especially if you want to earn a reasonable amount. If you only have a small subscription list then you're likely to struggle with making any kind of return here - unless you're in a super-specific niche.