Here's why search engine optimization software doesn't work: Google employs over 19,000 people. Yahoo employs over 13,000 people. PHds, masters, honour graduates, technology professionals and other bright minds undergo 5-7 interviews before getting their positions. How can single software application match so much brain power? People get paid good money to make sure that doesn't happen.

PageRank reflects our view of the importance of web pages by considering more than 500 million variables and 2 billion terms. Google Technology Overview.

How can software match 500 million variables? Best SEO professionals in the world are not even aware of it.

Search engine optimization professionals get paid good money to decode and back engineer ranking variables. Thousands of SEO professionals test, discuss and guess algorithms in order to find what works.

How can single mind behind SEO software match community of networking optimization experts who share new insights, tests and discoveries every day, through forums and blogs?

SEO software cannot get links and in-bound links are essential to search engine optimization. If you don't have quality links, you have no chances on Google.

Getting quality links involves human input. You have to get in touch with webmasters, review directories, create content, look at quality of websites and sometimes, negotiate the price. SEO software can give you a predetermined list of websites on a topic, but it cannot contact webmasters and ask for links. It cannot make directory submissions nor can it network with industry peers.

If you neglect quality link building, you will be buried on page 54, in "no man's land"...

Can SEO software do link building? No.

Google makes over $20 billion per year. Approximately $5 billion per quarter (4 months), which is around $8,3 million per day or $347,222 per hour. There's too much money in search to allow software influence search results.

Search engine optimization software does poor on-site optimization. On-site optimization is the adjustment of website elements such as page titles, "h" tags, content and internal linking. Search engine optimization software can only recommend adjustments, but it will not do the actual work. You have to manually optimize every page.

Software that does on-page optimization is quite stupid and will make a mess of your pages, because it has no intelligence and cannot judge. It simply executes programmed commands. Software cannot think. Nor does it have sensing or intuition, which are necessary in any calling, including search engine optimization.