I am sure most SEO specialists faced this, and will face it in future, when you offer a SEO presentation to brands company or mega sites ( 1+ million visit per day ) you will first hear from one of the C level managers: dude we have 1 million unique visitors per day , what you will bring to us ?
Well let me share this case with you, we started working with a local web site from middle east 10 days ago (mega websites in middle east get 1 million visits per month and more ) , we started with internal SEO plan . Can i shut up now and you view screen shot below :

As you saw, we jumped from 27+ k unique visitors per day, to 200+ k unique visitors per day ..That’s more than 700% increase, the decline you see on refer to weekend days , traffic peaked up to an average of 150+ k unique visitors per day on business days .
Of course there were shift from source of traffic from direct to refer , and decline of staying in the website, as most know usually search engine visitor reads the page he clicks on, then may go to homepage or another related story then close.
Now back to our friends of the screen shot, they usually get 1+ million unique visitors per month, by end of January 2010 we estimate the traffic of Jan will be 3+ millions unique visitors.
It was not that big surprise to us, that’s why we told them make sure you have good web hosting plan to handle.
Also we want to share with you , that 15 % of this internal SEO plan, focusing on realtime web .
As first stage ends ,and social media campaigns start for them, we estimate their traffic will reach 5+ million unique visitors per month.
The point ?
Regardless how big you think your brand is, or how much your loyal customers are , SEO plan will bring positive not negative impact .
As fun end for this, the E-marketing manager of this website, after the fast jump call us for a meeting to say this : i brought you here to tell you this line, and you see my face expressions while am saying it :
FUCK YOU ARE SO GOOD.
For most of us ” SEO specialists ” this worth more than money, regardless how offensive that means for some.