Is Meebo making money?

I just finished reading their blog posts (blog.meebo.com) about startups in general, and it seems to me they talked quite a bit about what it feels like to be a successful startup.

True, they have 50 million users per month, but...are they making money? Is it a business yet? I can't seem to find any info on this, so I figure I'd turn to the HN community.