EuroCom III

The EuroCom Slavic part seems to be under the work of Lew Zybatow (http://www.eurocomslav.de/). Although the Slavic portion doesn't have the clickable texts for each language at this point, and much of the website has the notice "under construction", there is a wealth of great material here for the learner who wants to systematize learning of multiple Slavic languages. Most usefully, there are some huge charts with "International Words" and "Pan-Slavic Words" as they occur in 12 Slavic languages--those are really interesting to look at. What I find really useful is the "Sound Correspondences" for the different Slavic languages. It's well-done and the animation is quite slick. You can compare different languages, and see, for example, how the word for flower illustrates typical sound changes in Russian and Czech, etc.