Time taken for relevant ads to appear?

Ajith Reddy asks:
I have created some posts related to Adsense keywords.
How much time will it take for the ads related to that Keywords to appear?

Answer:
You will start getting ads that are related to your content soon after your sites gets crawled by the Google bot. After you place ad code on a page, the bot will crawl it as soon as it is free. This can be instantaneous or may take up to a couple of hours.

You can also use Section targeting for giving emphasis to certain areas on your page. Knowing how adsense works will prove to be an added advantage.