www.guerrillawallpaper.com Is there any other way of earning except google adsense? and how can one increase his earnings?
There's several ways like increasing traffic, changing the placement of the ads, adding the number of ads, allowing visitors to buy "premium" account to get rid of ads perhaps, include a donation button on your site. Not much experience with wallpaper sites but I'm assuming there's likely a few ways to improve earnings, have you tried any other ad networks?
I have the perfect ad network for your kind of site! Use #1 and #2 from here > http://www.technouz.com/394/top-5-google-adsense-alternatives/ I think #2 will be best suited for your kind of site. And using that affiliate link gives you 80% revenue share rather than 60%.