Notice the input box beneath the wallpaper. The full code listed in the input box is –
<a href="http://www.narutowallpaper.biz/Sasuke/Sasuke-Uchiha/"><img src="http://www.narutowallpaper.biz/images/wallpapers/sasuke-uchiha-small.jpg" alt="Sasuke Uchiha" /></a><a href="http://www.narutowallpaper.biz/">Naruto Wallpaper</a>
What this code does is display the wallpaper with a suitable alt tag and a link on the image to Naruto Wallpaper. There is also a link listed beneath the image with the anchor text ‘Naruto Wallpaper’ which also links to Naruto Wallpaper. With these two targeted backlinks the rankings for ‘Naruto Wallpaper’ will improve with each new hotlink.
The great thing about this method of backlink generation is that it grows exponentially, as people hotlink your images your search engine rankings improve which in turn brings more visitors to hotlink your images. However, you do have to remember that your bandwidth usage could become huge so monetizing your traffic is essential to cover your server expenses and to generate a profit.