Apart from Adsense...

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What is the best option to Adsense. I am asking this in the worst case scenario. If I happen to lose my Adsense account, which is the best bet for me to earn online? Secondly, I am finalizing things for my upfront paying site. If I lose my one way of earning - through Adsense, how can I keep funding my site so that I keep earning and the site stays too. Can I use my current Adsense account for the new site? I am using the present account for my blog and earning as well. Is there is technical difference if I have to use the same account for such a site?