AAA Corporate Rentals
Boston Apartments- Furnished short-term apartments Boston. Specialize in fully furnished hotel alternative apartments with NO fee. Corporate relocation, travel, hospital stays, extended stays. AAA Corporate Rentals.
http://www.aaacorporaterentals.com/

Biz-stay.com
Global extended stay lodging directory - includes links to quality corporate housing providers and apartment hotels.
http://www.biz-stay.com/home.cfm

Premier Luxury Suites
Chicagoland's fastest growing corporate housing provider offers luxurious temporary accommodations for the most productive and comfortable extended stay. You will also enjoy a personal level of service that you won't find anywhere else.
http://www.premierluxury.com/