Today only: American Express Business Gold Rewards card with 75k sign-up bonus

Sorry for being late in posting this deal because it's 1-day only.  Amex is offering a 75k sign-up bonus for their Business Gold Rewards card with a minimum of $10,000 in spending within the first 4 months of card membership.  Amex's Membership Rewards program is arguably the best credit card reward programs out there with their tremendous flexibility in point redemptions and countless partners.  For more info, check out The Points Guy's post.

Things to note about the card:
-3X points on airfare, 2X on U.S.-based advertising, gasoline, and shipping, and 1X for all other purchases
-$175 annual fee waived for the first year
-Amex's unparalleled purchase protection benefits

This is easily the best credit card sign-up bonus out there right now.  Too bad it'll only last for a couple of more hours.  Amex has been known to release this offer for 1-day only bimonthly, so if you miss out on this one, you'll likely get another chance, albeit for 24 hours.