Spark doesn't appear to have an article titled that. If there is an ad there now, then yes that was an ad. It's in advertising space.
If you have difficulty recognising ads from content (because they try VERY hard to create exactly that problem!), then work out where the ad-spaces are on your favorite sites and never click anything in an ad-space.
Unless, of course, it's a legitimate ad you want to support the site. :)
Deb, in New Zealand