It was unique because the advertisment was from a biotechnology company named LifeCell offering stem cell preservation services in India. The service they offered was to preserve the umblical cord of your newborn. In case at a future point in time when the kid/adult gets diagnosed with a life threatening ailment and needs a transplant, the cells from the umblical cord are harvested and grown into a organ fofr your child. Absolutely no issues in terms of compatibility. The patient's body will accept the new organ like a fish to water. I was amazed to see and Indian company offer such services.
My mind then shifted to why was I seeing this ad? It so happens that my wife had changed her marital status to 'married' in the profile before I clicked on 'logout'. I guess that some program in the background sensed that the user being an Indian, a female and a newly wed, the interest aspect in such a service would definitely be high. Wow, that's a called targeted bombing. And the point is that you haven't asked the end-user a single survey question yet to identify his/her interests.