NuLengua certainly make learning Spanish easier. You don't have to go far. All you need is a computer and high speed internet connection. Some people might not be comfortable talking through the internet, but NuLengua has partner language schools reside in Guatemala which mean certified native Spanish-speaking instructors will be teaching you.
It's a highly recommended program and they even offering free lessons, so you can try it out. The set-up of the program is pretty easy. You just need to install Skype, register with NuLengua, schedule a lesson (1st & 2nd lessons FREE), connect with your online Spanish tutor and enjoy your lesson.
I think this is a fantastic program to promote. They gives $10 per sale with 30 days cookie. Any affiliates promoting learning Spanish or any foreign language should
join and start making money!