Self Growing Websites – Adsense?

Lately I was looking some really cool sites, that mostly are used for Adsense, and I've noticed that they are auto updated with RSS feeds probubly, over a speciffic topic, such as cars, history, etc. How could I go about doing it?
Thank you in advance

There are many ways to update sites:

- run RSS feeds getting content from news sites such as news aggregators such as Yahoo News or Google News
- article sites such as EzineArticles offer RSS feeds

However, you can certainly earn more with Adsense if you have original content and not just use somebody else's content. Remember that with these feeds, mostly users will click on the title, and then will be taken OUT of your site to read the content where you pulled the RSS feeds out (that's why these sites are giving snippets of their content free through RSS — so you can give THEM traffic)

You can certainly use RSS feeds to keep your content fresh. But your Adsense click through may be very low — and lower CTR means lower Adsense earnings.

That's a visitor going out of your site — and with Adsense, you'd want a visitor to go out of your site by clicking on an ad, not before they even had a chance to click on the ad.