http://www.smartship.com
2. AnythingOvernight.com
http://www.anythingovernight.com
3. Package Track
http://www.packtrack.com
4. InterShipper
http://www.intershipper.net
5. Freightgate
http://www.freightgate.com
6. ELetter
http://www.eletter.com
7. FreightFinder.com
http://www.freightfinder.com