incrediBILL - 7:09 pm on Feb 8, 2013 (gmt 0)

;)

I have been in SEO since 1990 and there have been many changes

You mean like the creation of search engines in 1993?
[en.wikipedia.org...]

... or the first use of the term SEO in 1997?
[en.wikipedia.org...]

According to industry analyst Danny Sullivan, the phrase "search engine optimization" probably came into use in 1997.[3] The first documented use of the term Search Engine Optimization was John Audette and his company Multimedia Marketing Group as documented by a web page from the MMG site from August, 1997

:)

I'm assuming that 1990 was a typo?