I met a automatic link building tool last month "LinkLifting" it is an automatic service for SEO and link building. I lunched it to boost my site. I talked to the CEO of the company and he said, there is no risk to be penalized. my site got ranked within 3 weeks for highly competitive keywords. The charges are based on keywords and they charges on a monthly basis. If they can provide this services without getting penalized. I think its a very good news for site owners and seo professionals. As a seo professional, I am using it for my site for testing. If I get ranked, I will think about it for my clients too. Waiting for others review and experiences with "LinkLifting". Or please let me know if such Automatic SEO can penalized my site permanently. The domain is LinkLifting >Ctrl + Enter. Thanks and cheers!