I am highlighting a group of tools that I have found on a blog post by Richard MacManus, who writes a blog called the Read/Write Web. In a a post called the top Spanish Web 2.0 Apps from August 2006, he highlights the following applications which I think may have application in our classrooms:
Tagzania – a geomapping site with excellent features; you can create your own “geoposts” and it automatically produces a KML file of your posts for Google Earth. Here is Eduardo’s account and the KML of his videos (in the form of a travel videoblog). On this site, there are a number of French Resources

Podcasts: Comunicandoand Triunfa en internet
QDQ has pictures of thousands of buildings in Spain, so you can search for an address and see what the building looks like (type Castellana 2 for instance in the street address in Madrid).

From this post, here is an interesting fact about Spanish Web Tools:

An interesting fact about Spain’s web apps is that most sites are presented with multilingual engines. Eduardo told me that Spanish Web entrepreneurs think that Spanish-only sites have a limited audience – “only 300 million people or so” (!) – so a lot of them create multilingual apps.

There are other applications not highlighted here that you can take a look at yourself.