The definition of irony or ironic:

• containing or exemplifying irony: an ironic novel; an ironic remark.
• coincidental; unexpected: It was ironic that I was seated next to my ex-husband at the dinner.

I was viewing a site today which used Google Adsense and what should come up in the advertising than something for Text Link Ads.

Text Link Ads are an up and coming advertising network which uses plain text advertising. Text Link Ads say that what they offer is unique because they are static HTML links that can drive targeted traffic and help your link popularity which is a top factor in organic search engine rankings. In the short time that Text Link Ads have been around, there have been lots of positive reactions to their service.

It gave me a chuckle anyway.