Simply put, Google Adsense revenue is a great way for about 95% of all sites to generate income, especially in the beginning stages.
Those ads that your eyes just breezed past are supplied by Adsense, which is owned by Google. There are some things you should know about monetizing with Adsense.
This is true. A real, live human person will review your first site before you have approval to use AdSense ads. Probably 99.9% of SBI sites pass the review, so as long as you follow the Action Guide, you should be fine.
Subsequent sites are not reviewed prior to approval. They assume that by then you know what you are doing.
True. If you mess up one site, you can lose the right to use ads on ALL of your sites. So be careful. Review the material in the Action Guide and in SBI Tips and Techniques to make sure you are doing ok.

Truly, getting and keeping Google Adsense revenue is not difficult. Thousands of sites earn many thousands of dollars each and every day. It is an excellent way for most sites to generate income.
AdSense rules change from time to time. Mostly Google is looking for honesty in advertising. A few of the do's and don'ts:
When in doubt, ask about it in the forums. Someone will know.
The two words sound very similar and are therefore confusing. One generates income, and the other costs money.
The One That Generates Income: What you see up above is a block of AdSense advertising. I am a publisher (you will be a publisher, too, when you have your website). Google puts those ads on my site because I put some code there asking them to do so. Every time someone click on an ad, I make some money. That is Google Adsense Revenue.
The One That Costs Money: AdWORDS are the other guys. Other websites and companies create little classified ads (like the ones you see above). They PAY Google to place those ads on websites. Those are AdWORDS.
Google matches up websites with ads and makes the whole thing happen.
Most webmaster create AdWORDS, ie., they PAY to place ads on other sites. It helps them generate traffic and sales.
SBI sites don't pay for traffic. We get traffic other other ways. We use AdSense as a way of generating income on our sites. And, because we don't have to pay for the traffic we get, it costs of many thousands of dollars less than other sites to become very successful. (Now, don't you just feel smug!)
Maybe nothing. Maybe thousands of dollars a month. Sorry to sound so evasive, but there are lots of variables.
As with any revenue stream, a lot defends on Traffic. A site generating 10-20 visitors a day isn't likely to make much AdSense income. A site generating 1,000 - 2,000 visitors a day will make a whole lot more.
While there are no hard and fast rules, generally speaking, any site getting a click through rate of 10% or more is doing really well. That means that 10% of every visitor who reads that page clicks on an ad.
Your earnings also depend on your topic. Some topics just pay more than others. A site about poodles will likely have a harder time making money than a site about buying stocks and bonds. Think about who will be placing ads. On the poodle site, perhaps dog food companies or dog toy makers. These are not huge conglomerate types of companies. On the stocks and bonds site, all kinds of investment companies will place ads, and they have more money to spend on advertising.
In SBI's Brainstormer, there is a component that will help you determine which type of sites is likely to make better income with Google ads.
You used to be able to get general cost ranges when you did your search at Google, but that service has been discontinued.

Legitimate Online Money Making. Don't waste time or money on the Get Rich Quick Sleazes. Here are the legit and real ways to make money online.
The Secret of Making Money Online. Yes, Virginia, there is a secret. But it isn't what you think.
Amazon Advertising. There is very little that Amazon doesn't offer, and you can sell it all on your site.
EJunkie . The easiest, and cheapest, online store you will find. Great service, too.
Google AdSense Revenue . A few little ads can bring in a ton of money. Google makes it easy for well constructed sites to make money placing AdSense on their sites.

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