How big is the SEO market?

In terms of USDs, how large is the SEO industry? Annually.
I guess it's a bit difficult to measure.
Is there any official research on this matter?

 

I guess you won't find any "official research" apart from guesstimates.

My guesstimate is $700 mil. / year

 

WAY bigger than $700 mil.

 

I don't think it's WAY bigger.

Unless, of course you count such things as MFAs, affiliates, and own projects that many SEOs have.

I only consider paid services of expert (SEO) for website owners.

 

Yep. Brett from WMW estimated it's 2-5 Billion.
But it was 7 years ago

 

It's big no doubt much of it fueled by those who willingly pay SEO con-artistes with the hope of being No. 1 on Google for their industry....

 

Again, it depends on the size of brush used.

Mr. Tabke certainly used a _very_ large brush.

 

Also take in account then PPC services along with general SEO.

 

Very VERY large it is !!

Imagine all those sites out on the web that didnt pay a bit attention to SEO..

all customers.....

 

How is it even quantifiable? Many other areas, such as affiliate marketing, use SEO or tie into it. Does their value count as well?

 

$1.5 bil is my guess, but that's all it is: a guess.

 

I think its still not way more mature to get attention for 'official estimates'

No figure, No guess.

 

Seo and Internet Marketin / Webpromotion this is a very large market that's for sure

 

Its very hard to determin the SEO industry as a whole, does it include paid or is it stricly organic? does it include a marketing companies total turn over or just that from SEO? To hard to define.

 

I just can't believe there is no big name that has researched that.
emarketer, JupiterResearch etc.

 

seo market is increasing rapidly.

 

SEO is a big market and its difficult to measure !

 

Not sure in terms of money , but during last year I read in a well known marketing ezine, that there are about 60 million of human being generated keywords.
So the potential is huge.

 

I think Google knows.... Hehehehe. I think it's more than huge ..

 

Google made 7billion USD out of advertisement revenues alone last year. And advertisement means adsense for google. That surely gives a rough idea how big the thing is.