The Business Gold Rewards Card from American Express is currently offering 75,000 Membership Rewards bonus points when you open a new account and spend $10,000 within the first 4 months. This deal is valid for today, February 29, 2012, only.

Considering the current standard intro promo for this card offers no bonus MR points, this is a pretty nice deal.

The card earns 3x points on airfare, 2x points on advertising, gas and shipping and 1x points on everything else. There is an annual fee of $175, which is waived for the first year.

For more info or to apply, see this link.