I have tried everything on the market at one time or another and in my opinion Seoit found at http://seos.mobi is the best backlinking product on the market. It is a little pricey but compared to all their competitors they are far above the average link provider. Yes, I know you said software but these guys run all the software for you and if you are serious about seo then why spend all your time running software when you could be focusing more on running your business. Over the past two years alone I have spent over ten thousand dollars on every seo software I could find. None, provided the increase in ranking or the diversity of links that Seoit can provide. Not to mention the extra time I have. Which for those of us who run our on business is the most precious asset we have.

Yes by far the best seo software you can buy is Seoits automated system.

I dont like SEO software but you can get lot of SEO software there. You can do SEO manually. Manual SEO is better.Search Engine Optimization (SEO) is a challenging and dynamic field regardless of the client. Working with large enterprise brings with it a new set of headaches. Not only is an SEO specialist required to keep abreast of the constant developments in the field, but in an enterprise situation, they are working with a large organization that does not have a single decision maker.

I think software is good than do by hand. You can try to use this tool http://bestseosoftwarediscount.com/

Scrapebox and Xrumer are the best to create thousand of backlinks in just a click.