I took two years of German not all that long ago, but I can't really say I learned the language. I can pick out words here and there, make it to the bathroom, and say "I'm sorry, but my German is terrible". That last bit was the one that came most in handy when I was there for a couple of days last year.
Fortunately, I've got some incentive to improve my language skills. There's a good chance that we'll be moving out there in a couple of years, which wasn't a bad incentive, but hasn't been enough to get me off my butt yet. Fortunately, I've just been given another incentive: there's now a German-language ScienceBlogs site. The folks from Seed, who conceived of, designed, developed, and (most importantly) pay the bills for ScienceBlogs.com have formed a partnership with Hubert Burda Media, and this has lead to the opening of the new ScienceBlogs.de site.
If you speak the language, go on over and enjoy the new blogs. I'll be with you just as soon as I go back through my old textbook a couple of more times. And if you want to see another version of ScienceBlogs in a different language, head on over to Page 3.14 and take the language poll there.