New gadget blog - it's all about backlink.

If you just set up your new gadget blog,what will the first thing you need to do?
Well other than submit the URL to search engine, you need to do a directory submission so that you can get more backlinks as many as you can.

Directory submission actually is one of the best link building tools that you can use. The more backlink you have, the more easy for you to get a PR. I mean, once your gadget blog got PR, then it's worth for you to join make money program.

How much do you spend for directory submission do far?
Do you have any idea on how to find the best source for me to reduce the cost of link building process?