It turns out that the most promoted Machine Translation Systems on the web are currently Google Translate and Systran (used to be and most probably is a benchmark for machine translators for European languages). It was curiously to find more and after diving with Google I managed to find a nice page with more than 100 machine translation systems, some of which are available as demos online.

Only an excerpt:

http://www.sunda.fi/eng/online_demo.html (Finnish Company)