It might be a while before interacting from the 3rd party sites is available though - it's turning out to be a community effort. To keep people's accounts/keys safe, it all has to be done right, and likely through a collaboration of multiple different services for the blockchain.

I could add a really crappy version that asks for your posting key and lets you vote - but that feels somewhat irresponsible. I don't want to encourage anyone to post their keys where they don't feel comfortable.