Baby! cards

I do like these baby announcement cards from Umpen: direct, to the point, and rather beautiful. Plus gender-neutral colouring (ok, there's a big patch of pink, but really, it doesn't scream 'girl') means you can stock up on them pre-birth in a very efficient way.

Umpen are a London-based company, but see their contact page for details of distributors in Australia, Canada and the US too.