Have you ever considered translating portions of your site into other languages?
You could easily find how many users are from other countries and determine where the most need is. I imagine you have many users that know Spanish better than English and could benefit more from articles and other areas of your site if they were translated into Spanish.
If your only reason for not doing so is for the lack of a translater, then I volunteer my services since I know Spanish and English fluently.
Robert W. Marda
Billing and OSS Specialist - SQL Programmer