The usual sign-up bonus offer for the CitiBusiness/AAdvantage Platinum Select World MasterCard is 30,000 AAdvantage miles after you spend $1,000 on purchases in the first 3 months of account opening. However, there is currently a limited time offer where Citi is offering sign-up bonuses of 75,000 American AAdvantage miles with a $5,000 spend in the first 3 months. The $99 fee is waived first year.
With the business card, you earn 2x miles on or every $1 you spend on purchases at certain telecommunications, and car rental merchants and gas stations. You earn 1X miles on all other purchases.
There are no foreign transaction fees on purchases with either card. Both cards allow your first bag checked free for you and up to 4 companions.