tell me more - how / where did you do this?
As I said, it was in France, but I guess it's the same job everywhere.
These companies sell to business a better placement on Google result with what they call "natural SEO".
In order to be more pleasing for the Google robots, the sites of these companies will be filled with little texts, sometimes even complete dictionnaries, relative to their activities.
Some other times, you've got to make it more "marketing-oriented", with a lighter tone.
An example of what I had to do : create some texts for an online estate agency, where I had to define this :
building
building business
pavilion
house
business district
recreation center
warehouse
local
...and hundreds of others .
Basically, you write 5,6 sentences that you fill with keywords (usually some other word on the list).
Each text is paid, 4, 5 €. Sometimes more.
In order to do this, you can use an online interface, as easy to use as word.
Funny thing : "natural seo" is, in a lot of cases, bullshit. The tools we worked with made precise reports about the companies we helped and their competitors.
Because google robots are more clever than this. But this, it was a good little job.