Ch. 7 Advertising, Consumer Cultures & Desires

I can't help but always notice the abundance of these relationship companies like "Match.com", "E-Harmony.com", and "Singles.net". The ads are always popping up and with this assignment, i thought it would be fun to look at the differences in how they advertise and they're different strategies to attract people to they're websites. Match.com's ad was just a girl laying on a lawn and smiling like she is just blissfully happy and there isn't a worry in the world. Eharmony's website is a good-looking couple laughing with eachother while hugging. Singlesnet.com's website was a younger pretty girl looking sexy with a somewhat seductive look as well. Im not positive but i think that because i searched singlesnet.com and match.com on Google, that google knew that me being male and looking for a dating service made it to where the ads that came up were ones with women. If i were a woman looking up dating services, would google automatically tell the ad company my gender, and pop up the appropriate ad? Eharmony seems to me like they might cater to an older group of people.
http://www.match.com/index.aspx
http://landing.singlesnet.com
http://www.eharmony.com