If "best" is too subjective of a word, then which are the three most popular search engine optimization software applications?
I don't think too many people would be able to answer this question for you. I think if most people found a very good seo software program, they would stick to that software for a while. They wouldn't bother checking out other software if they program they use works well. One program that I would recommend is SEO Elite. It's great for analyzing a competitor's backlinks. It also has a lot of other features such an search engine rank monitoring, article submitting and much more. I really should've signed up for their affiliate program so I could make some cash each time I recommend this.