i see that the most important thing to make money with adsense is to adjust the place and color of the ad. this encourage more clicks on them.
This advice was given hundreds of times on this forum. Why don't you come with something new and unique? This is just one of many factors to succeed in adsense business. I think the most important advice is: create your blog or site for visitors, not for adsense revenue. When you will get thousands of visitors a day, then you can apply adsense on your site. You will be amazed how much money you can make. And stuff like "place and color of the ad" won't be so important anymore. Of course this will increase your revenue, but without traffic and returning visitors - you won't make any money even if your ads will incredibly blend to your site.
Also important is the type of audience your content is likely to attract. Catering for non technical audience will improve your CTR and overall eCPM too.