There are huge debate regarding this matter in some webmaster forums. In this competiton which one you’ve used? And automated link building software/script or you do it manually?

I do agree with others that manually submission to directories, social bookmarking sites, commentting is more accurate and better than using any software out there to build your backlink. But if there are good software that make my job easier then I will used it. I know automated software are not 100% accurate but the time you will saved is bigger than doing the manual system.

In this busby seo challenge contest ,  I really do more manual work in building my back links. But I admit I use one software to promote my site rss feed , an automated rss feed submitter to 20 major rss feed sites.  But still I guess using manual submission is more effective if you have enough time, but if you’re like me who have lot of other IM works then I suggest search for something that will automate the process and it will make your life easier.