The Starwood Preferred Guest Card
Allows accrual of points, which are banked with Starwood for use at any hotel, or for transfer to many airline partners at a 25% bonus (20,000 points = 25,000 miles).  First year free, and 25,000 Starpoints when you apply through this link

Global Entry
If time is money, Global Entry is worth every penny.  Enrollment is a little complicated – you submit an application and a $100 fee (for 5 years) online.  After receiving conditional approval, you are scheduled for a personal interview at with the US Customs and Border Protection agency.  Once your interview is completed, you are eligible to skip the line at immigration and use the Global Entry kiosks at select US airports.  You are also eligible to use the new Trusted Traveler lanes that are about to be rolled out from their test at American Airlines security screening in Dallas and Miami. (American Express Platinum card holders get a refund of their Global Entry fee.) Enroll here.

ExpertFlyer
ExpertFlyer.com is a travel information service for frequent fliers and business travelers that provides access to in-depth flight/travel research that up until now was only available via travel agents and by calling the airline directly.

They offer one-of-a-kind features such as Flight Alerts (award/upgrade notifications) and Seat Alerts (free seat notifications) that notify you when the free/upgraded flight inventory or preferred seating becomes available for trips you request. Get a free trial here.

FlyerTalk
the most popular Frequent Flier community on the web, often an invaluable resource for insider information on mileage bonuses and strategies.
http://www.flyertalk.com/

Priority Pass
Priority Pass offers a world-wide lounge access program.  The full Priority Pass membership includes access to the United Clubs, recently removed from the American Express Platinum Card program.  American Express Platinum Cardholders currently receive a “Select” membership, which offers full access to all Priority Club lounges EXCEPT United Clubs. Regularly $399/yr, this link offers a 10% discount.

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