Can someone help me with ideas on how to build links for free, or cheaply. I know about buying links, but it is not worth the risk of being penalized by google.

I have found a few sites that offer manual directory submission and article writing/submission. Are these legit? Will I get penalized for using these as well?

I am looking for free ways to get quality links. I have read all about blogs and articles, but I simply dont know if I have advice that is relevant to promoting my e-commerce site.

I would love to hear ideas and suggestions from those who have built their e-commerce site to have a good monthly profit and have nice SE rankings.

Thank you.