American Express seems to offer 75,000 points for their Business Gold Rewards card with some frequency, though the last time I saw it was January.
The offer is back and requires $10,000 minimum spend within 4 months to get the bonus.
The standard offer on this card is no signup bonus, I got the card myself in December 2011 with a 50,000 point signup bonus after $10,000 in spend. So this is better than the offer I used to get the card. Although the high minimum spend will scare many folks off.
If you’ve had a Business Gold Rewards or, say, Business Platinum card within the past 12 months you aren’t eligible for the bonus.
The card waives the $175 annual fee the first year and offers triple points on airfare and double points on advertising, gas, and shipping.
The application lists an expiration of March 14th, but I’ve seen others reference an end date of March 8th (which would be more in keeping with other limited time 75,000 point offers I’ve seen Amex make for this card).
(Note this is not my referral link and I do not receive any credit of any kind if you are approved when using it.)