One of the subjects I wanted to write about here is the increase interest about the sites that have multi-language support and content. We've been designing sites with this support from some time, some of the clients never uses this but others require it from the beginning.

It's not wrong to say that the international language of the internet is English - it may be rather difficult to browse the world wide web if you don't know it, but depending of the area the default language can change. So, having the description of the products and/or services published in different languages it can only help because you may have visitors from other places in the worlds that does know your default language of the site. The best solution when developing a website is to create it in such way that the multi-language option is always there, even if it is never used, and the adding of a new languages is easy and does not imply any changes in the structure of the web site.
As software developer I can say that the software it may not be as visible over the internet as a website, you can only see or here about it's results. The best software (no matter it's target and field of activity) is the one that's easier to use by any user. One teacher in the faculty taught us, as students, that the development of the user interface is a race between us and the nature: we have to create better interface, that can be used by any fool in the world; the nature always creates bigger fools. The education over the world has a lot of lacks; the software that have the interface in several languages well known in the wold will not resolve the problems of the education, but it helps in some way.
For example, I've "met" a Hungarian company some time ago that were selling stuff over the internet, they created 6 different sites (with the same identical structure and different content) for 6 different countries & 6 different languages all over the Europe. The maintenance of those sites were a killer because they had a lot of products and every time when they were making changes (in the description of the products, adding & deleting products depending the current lists) they had to go in 6 different administration panels and do things. One single web site, developed with multi-language option would have made the things a lot easier - one panel, 6 languages and articles for every language. The domain names can be mapped distinctly using the server, so all the modifications could have been done in (maybe) half of the time.