Играть. Estimate. Plan.

Finally, an estiamtion tool that's actually fun to use, brought to you bt the
agile consultants and trainers at Mointain Goat Software.

How does Planning Poker® work?

The idea behind Planning Poker is simple. Individual stories are presented for
estimation. After a period of discussion, each participant chooses from his
own deck the numbered card that represents his estimate of how much work is
involved in the story under discussion. All estimates are kept private until
each participant has chosen a card. At that time, all estimates are revealed
and discussion can begin again.

Our Tool Lets Even Distributed Teams Estimate Together

Planning Poker is the best way we've found for agile teams to estimate. It's
primary downside has been that all participants had to be sitting in the same
room with a physical deck of cards in their hands.

Now, this free online tool lets distributed teams take advantage of Planning
Poker, too.