How much can we earn after registering our website with google adsense? is it worth maintaning a website?

Theoretically, there is no limit to how much you can earn through Adsense. But simply maintaining a website will not be enough to get the money flowing. There are several things that go into it like 1. Search Engine Optimization(SEO) 2. Placement of Ads 3. The kind of ads. Some ads are more high paying than the rest. I would advise you to have a blog or a website on something you really are interested in. Check out the public response and then try monetizing it. If you are successful with Adsense,there are other high paying programs like Chikita. Again,it is not absolutely necessary to have a hosted website or blog. You can also experiment by having a free blog on www.blogger.com which supports Adsense. I have a blog which is hosted and runs on wordpress while the other is on blogger. Have a look at both to help you decide.

The earning depends on several things. First, the niche you build your website in. By niche, i mean the type of website. It can be related to technology, weight loss, sports site, or it can be website regarding certain products like based on only one car. You have to select your niche, then get your domain based on that niche, then you make your website. The main thing is promotion and add placement. Where you place your ads and how you promote your site is very important. I have seen people earning $10/day and that is not bad at all. I also have seen people earning none. I myself am earning $1/day and that i feel is good considering the amount of promotion i do. I am now trying to scale it up to $5/day. You need to take care of certain things like the content should be unique and not copied from other sites. Hope it helps. Thanking you