Well, after almost 3 years of blogging, we have put ads in the side panel of the blog. I slightly rearranged the elements, to allow space. Supposedly, if any of our readers click the ads, some pennies will flow into our "ad sense" account, and when it reaches the grand sum of $10, they will issue a check. We will see.
Giving a generous estimate of possible earnings, it may give us $10 a year (or less), not enough to retire to some South American country and live near the beach...... Wait, we already have that.