Hi Mary Joe! WordPress is just the platform that you use to create and publish your blog posts. They do not pay bloggers. So, I’m guessing you may have been signed up with an ad network or affiliate program where you were earning income. Some of the most common are Adsense and Amazon. However, there are many thousands of options out there for earning an income blogging, so you’d really have to go back to your blog and check if you see whether you were working with a particular company. One thing I can say in general is that some companies have a minimum amount you must earn before they will issue a payment, it would be anywhere fomr $10 to $50 or so. If your earnings were below that threshold, then that may be why you haven’t been paid. Also, make sure to check that you have given them your up-to-date contact information. I hope you’re able to make a go of your blog as a source of income soon! :)
Google Blogger supports advertising through Google AdSense, PayPal links, and limited affiliate links. If you use excessive affiliate links, fail to add relevant content when including affiliate links, or get paid to increase someone's search engine ranking, Google will move your blog much lower in the search rankings, greatly decreasing your audience traffic.
You want to be certain that thousands (if not millions) of other people share your enthusiasm and interest in the topic and will pay money for products and/or services that you have to offer in the niche from time to time. Even if you’re not interested in making money from your blog, I am assuming that you at least want other people to read it – yes? Then the same rules apply.
One criticism: I bought the print version, and there are a few illustrations there that were obviously done in color for the e-Book version, but they wind up in black-and-white in the print version. Surely it could have been easy enough to change the way these illustrations looked in black and white to optimize it for the print book e.g. using dotted or dashed lines, or more strongly contrasting shades of gray? I felt rather frustrated at that. However, it was the only problem I encountered (it only affects literally a few small things) and it was not a major drawback. I still give the book a full 5 stars, it's still great despite this minor issue.
Working with advertising networks isn’t your only option when it comes to selling ads. If you end up with enough traffic, advertisers may come directly to you and ask you to place their ad on your site. You can also contact advertisers yourself. The biggest difference from the above mentioned option is that there is no middle man, which means you can set your own ad rates.