There are many different ways to go about link building, and it’s probably a good idea to explore as many of the available options as you can. However, one sure way to start to get some quality “link juice” is by submitting your site to online directories, such as Yahoo, DMOZ and Best of the Web.
Yahoo’s directory costs $299 to submit to, but is highly trusted by Google, because submitting to Yahoo doesn’t just guarantee a listing for everyone. Instead, you’re paying for Yahoo editors (real people!) to actually review your site to determine if it’s quality enough to be included. So, Google can be sure that Yahoo weeds out most inadequate, and even spammy sites (of course, sometimes not-so-great sites can slip through the cracks).
To Google, an inclusion in the Yahoo paid directory is a stamp of approval of sorts, but Google also values the “opinion” so to speak, of other directories, such as Best of the Web, another popular paid directory, and DMOZ, which is free.
Bottom line: if you have a site you’re proud of and want to spread the word in a quick, easy way, submit to to directories!
