Everybody wants to earn money by each and every activity he does but all our wishes are never fulfilled as we anticipate. RSS subscribers are the readers your blog who have a RSS reader and they don’t need to visit your blog to access your content. This in a sense hurts the basic revenue model of your blog. When reader visits go down the page impressions of your AD units dips down making it difficult to earn from your site. As people don’t visit your blog directly the click-ratio goes down which usually is of very small value.

This basic predicament is sorted out by RSS advertising. It is a relatively new phenomenon. Advertising in RSS feeds is growing rapidly especially as the move by many webmasters to publish full feeds and their concern that readers will no longer visit their sites which would be undesirable for them.

What if RSS subscribers do not click through to the website itself but use the feed to consume the content? Take the route of RSS advertising and hope everything goes as projected. You can implement RSS advertising either by outsourcing it or managing your own RSS ads.

1. You can use Pheedo (http://www.pheedo.com/site/)

According to Pheedo,
Pheedo supports a range of standard IAB banner sizes, text ads, as well as our own proprietary FeedPowered ad unit. Additionally, Pheedo provides the widest range of ad placement options in the industry, including inline and standalone item placements.

Pheedo places ads alongside your syndicated feed content. We insert ad code in your feed items that allows Pheedo to serve ads to your readers. Our system allows for ads to be placed next to your content within your feed items, or as individual items.
Pheedo along with RSS advertising also provides you with critical feed metrics to make it better to understand your RSS usage patterns. Pheedo measures and monitors your feed’s vital statistics including subscriber count, active readers, item popularity, and where your syndicated content is being consumed.

One of the advantages of Pheedo is that if you already burned your feeds with Feedburner, don’t despair. You may continue using FeedBurner’s feed management and analytics, and Pheedo will seamlessly deliver ads right into your feeds. Adding Pheedo ads to your burned feeds takes moments – and the set up is transparent to your subscribers.

2. Feedburner (http://feedburner.google.com/).
You can also configure Google Adsense ads on your RSS feeds using feedburner.

3. Auction of Blogs
Blogs are also sold for huge amount of money due to their RSS subscribers.
http://www.bloggingtips.com/ was auctioned for $60,000. It was having 8,200 RSS subscribers so if we do a simple calculation the worth of one subscriber would turn out to be $7.32.
After a reasonable survey, I have come up with a thumb rule that the worth of 1 RSS subscriber is $5.

Another way you can earn through RSS subscribers is RSS footer plugin. (http://wordpress.org/extend/plugins/rss-footer/)
This plugin makes it easy to add a line of content to the beginning or the end of all the articles in your feeds, for instance to display a link back to your blog.

Negotiate personally with advertisers and write HTML codes for them in the content of the RSS footer plugin. This may demand a sense of expertise but is good way of earning through your RSS feeds.