For those who runs their own Wordpress or blog, here is a excellent tips on how to remove FeedJit, Advertlets and MyBlogLog Footer. You can do this by customizing the CSS in your theme folder, which is called "styles.css"This tips was provide by NoktahHitam.
 
To remove FeedJit footer, paste these lines in your CSS. This will remove both the footer and header.
 

.FJ_Heading {display: none;}
.FJ_TrafFoot {display: none;}

.mbl_fo_hidden {display: none;}
.mbl_h {display: none;}