I just want to know how much high from water surface and land surface the advertisement can be done?

And we would know that because we're all airplane banner advertisers, right?

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Glomping the internet populace.

One forum at a time.

well... I don't understand a word on this topic  
are you talking about one of the ads shown on our website?

Our flying billboards soar at 500 feet over the water's edge for beach advertising and at 1000 feet when over land.

 
I think he's talking about advertisements in the sky, like these:
 

 

 

 

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Glomping the internet populace.

One forum at a time.

what the hell does such a topic on our forums ?
 
advertising is allowed : using the specified banners and paying for this. (this makes our website live)
 
topic locked, of course.