American Express Business Gold Rewards Card with 75,000 point sign-up bonus through March 14th

American Express is known for offering a periodical 75,000 point sign-up bonus for their Business Gold Rewards Card, albeit for only 1 day at a time.  This time, the promo is good through March 14th, which gives you a little breathing room to decide if you can reach the required spending threshold of $10,000 within the first 4 months of membership.  As a reminder, here are the benefits of the card:

• LIMITED TIME OFFER: Earn 75,000 Membership Rewards points when you spend $10,000 in the first 4 months of Card membership.
• 3X points on airfare
• 2x points on purchases in the U.S. for advertising in select media, gasoline at U.S. stand-alone gas stations, and shipping
• 1X points on other purchases
• Points are earned only on eligible purchases. Bonus points limitations apply.
• $0 introductory annual fee for the first year, then $175
• Introductory annual fee for Additional Gold Cards in the first year is $0; then, $50 for the first Additional Gold Card and no fee for other Additional Cards
• Terms & Restrictions Apply.  Offer expires March 14, 2013.

If you feel like you can't reach the $10k spending mark, the 50k points Amex Premier Rewards Gold Card appears to still be available, which only requires $1k in spending within the first 3 months of membership.  In fact, Amex even allows you to apply for both cards and log 125k bonus sign-up points since one is a biz card and the other a personal card.  Amex's points program, Membership Rewards, recently received a valuation boost when one of their Star Alliance transfer partners, ANA, eliminated all fuel surcharges on award bookings with United Airlines and US Airways.  ANA has a lucrative distance-based award chart, especially for premium class travel.