I read your post about Torsten’s work to publicize this web site in a different forum. I believe that without this successful team work you could not have created and publicized this wonderful web site.
Speaking about publicizing I was thinking about placing advertisement on other web sites. For instance, if you advertise this web site on www.multitran.ru which is undoubtfully the best Russian-English and English-Russian dictionary on the web, the number of users can at least double here. The mentioned web site also contains lots of other dictionaries in different languages.
I believe that you have already thought about this. I am just writing this to support the idea.
All the best