Here's a MediaCor tip... #802 - Banner ads and affiliate links not showing in the Website Editor

When adding banner ads or affiliate links to your website be sure you have disabled your ad blocking plugin or extension in your browser to ensure you’re able to see these items. One of the most common ad blocking extensions is Ad-blocker plus. You can change whether or not it’s enabled by clicking the red stop sign icon located in the right side of your address bar and deselecting the enabled for this site check-box  Make sure you do this on your preview or published site page as well. — Peter B