what are the best tips for Adsense , howto the pros n cons and which is the best niche to promote with the highest CPC ratio ?
i think you must search the idea fist, you can find it from ebay pulse or research keyword from google keyword tool then make an articles on it
The best thing to do is offer unique content that people actually want to read. AdSense will display relevant ads for the unique content and your visitors will be more apt to click the ads if they are truly interested in the content of the site & the relevance on the ads. Pretty basic really. One tip that all Adsense users should implement is blending their Ad Placements into the site content. Use the same colors/schemes as your site already does that way the ads don't 'bounce out' at the end user, make them flow with your site.
There are so many different tips but I agree with SCLocal, content is king! The Adsense revenue and other monetizing efforts should be an afterthought. Focus on creating great content and the clicks will happen.
You can use adwords keyword tools to search for those high pay keyword. However, suggest make a website/blog in the niche you are familiar
I run a sports site- I'm not doing great $-wise- but I have a ton of content. Here lately Its been doing fantasy football ads on everypage so hopefully it will pick up soon!