Did you try it?

Null pointer fail on that page, incidentally; the graphic at the top is actually a pointer to null, which isn't the same thing.

Stack Overflow on their namesake:

http://stackoverflow.com/questions/214741/what-is-a-stack-ov...

There needs to be a name for this phenomenon: a phrase being rendered un-Googleable due to overloading by a more dominant homograph.

I'm sure there is one in German...

You mean, like little Bobby Tables? http://xkcd.com/327/