James above is right on the money. That is one source of income that become automatic once you get the traffic you will need for something like that. The hard part though is actually getting the traffic and getting keywords ranked in google. Both of those are very hard to do.
Here are a couple of other options for making money online.
1. Youtube - Pretty much the same thing as adsense. You can make great momey, but you need lots of subscribers and lots of views which is hard to do.
2. Affiliate Marketing - This you can do with your website and with youtube. You can market whatever it is you want to sell on both of those sites as well as social media.
3. Fiverr - This is another option. If you have some kind of skill you can sell it on this website for $5. You would be surprised at how much money you can make if you are selling a bunch of what you do every day.
4. Easy Payday Revolution - This is one of the only online systems that I have had success with and you do not have to get your own traffic. The website provides traffic for you, but of course you can make even more by bringing your own traffic to it. This is something you can do in your free time at home.
5. Answer Questions - There are sites out there that actually pay you money to answer questions. If you are proficient in a certain field then you could make a decent amount of money off of them.
The most important thing to do right now is to get your websites up. This way however you are going to make money you can do it through there. It takers a while to get ranked in google so the earlier you start the better off you will be.
Google Adsense. If you have a website or blog or something that gets loads of money go on google Adsense. You can put adverts on your website and you get like 70p/$1 for everyone few thousand views on your website
hi everyone i was wondering how can i make big money online ???