After you “sign” his card you are directed to where else? — The donations page:

Drew —

Barack’s 51st birthday is coming up.

I hope you’ll wish him a happy birthday by signing the card we’re putting together for him.

You’ll be adding Drew, from Massachusetts, alongside thousands of other supporters’ names — folks from all 50 states, from all different backgrounds. Together, all those names will be impressive — they’ll show the strength of this campaign and our support for Barack.

And I know he’s going to love it.

Add your name today — and then ask a friend to join you:

http://my.barackobama.com/Happy-Birthday-Barack

These last few months until Election Day won’t be easy — so let’s show Barack we have his back every step of the way.

– Michelle