The non-English speaking Internet is for companies that currently operate in one language, a fabulous opportunity to increase their sales significantly.
The internet marketing in several languages is extremely profitable, though underutilized, because it is easier to reach the top of search engines rankings in languages other than English.
There is so much content online in English that the competition is tough to rank well in the search engines. The upside is that there is considerably less competition for internet marketing in other languages than English.