It could be that you got smart priced by google (see link for previous thread on dp). That means your earnings per click will go down drastically. There is no real way to recover as it is dependent on the advertisers return on investment which you have no influence on. What you can do is to remove your advertisements for some 2 weeks and see if you are getting better ads. Adding high-paying keywords is definitely not the way to go as it will only result in more smart pricing. Perhaps you could also read my blog-post about some major adsense misconceptions. (sorry for my own link).
Sorry, but I was asking for ways to increase adsense clicks, not ways on how to decrease them. Everybody said adding high keywords is the answer, and you're the only one who says it's not? Hmm... And please don't promote your blog on my thread, thanks.
i agree with this suggestion . When you get a high CPC on your blog , just visit your blog and note down the keywords that you have in all your ads - note that these keywords have a very high cpc in your niche and see to it that you use them more than often .Dont ever lose the list of those keywd.s
try to have minimum no of ad blocks, so that the bid increases. And try to place ads in eye catching position. Minimum ad block also have an advantage of targeted ads, so the click ratio also increases together with ecpm. I haven't visited your site yet, this is my strategy in adsense and it may work for you.