INTINYA SAJA

I used to use this technique untill my adsense account was banned for unrelated reasons. Set up a g-mail account with the vacation auto-responder pointing to your adsense page. On this adsense page (can be a free hosting account such as blogger as well) place pictures of 3-4 nice looking medium price range homes (Google real estate companies and snatch some pics). Place your adsense among those pictures.
Go to craigslist and post an ad similar to this example.

For Sale 3 Homes In Area
Refurbished And Priced To Sell
Respond For More Information

Once they respond (and you will get a huge response) they will recieve your auto-response with the link to your adsense page. Sprinkle your adsense page with real-estate and mortgage terms. This will ensure that the ads being served up will be mortgage/real-estate related thus bringing in .50 to $2.00 a click.
Of course this method will not make you rich. It brought in about $300 - $500 a month in adsense for me. I had more luck with mid-western and southern cities. Think outside the box on this one. You don’t have to use real estate for this. Autos work as well for this, just make sure it’s a lucrative niche with high paying clicks.

Tweak this idea and make it your own.