Q: Return on Investment for Adsense Publishers
A: This example is for an Adsense website already optimized on particular keywords in one language(say English), where the publisher is earning about $375 per month or $4,500 per annum..
A typical such website will contain about 100 pages of material.
To produce automated searchable versions in five languages, say French, Spanish, German, Italian and Chinese, will cost about $500. Since there are twice as many non-English speaking people on the Internet, a reasonable estimate of traffic increase for the different languages could be as follows:
Assuming the clickthru rate is same as the English version, this will yield $7,200 more in annual revenues.
Even if these estimates are halved, a nominal return of over 500% could easily be achieved with five additional languages!