In order to have high adsense revenue, you have to attract advertisers to your adsense ads. You can do this by setting your custom channels so that they are targetable by advertisers. In Google AdSense admin, select Adsense Setup -> Channels. Here you will get all channels for your content, search, and feeds. To setup the channel, select “edit settings” on the right of the channel.
By checking the ‘Allow advertisers to target this channel’ checkbox, you can enable advertisers to target their content to your visitor. Fill up the information which is needed by advertisers to place their ads. Enter the name and description that will describe the ad placement. Tell them when and where the ad will be showed. For example you can say: “The ad will be shown at first post of the blog’s front page, and every single post.”
Many brand advertisers look at all placements before placing an advertising order to make sure that the sites are in line with their brand and attract the type of audience they wish to target.