Meng,
A good place to start is
Java Skyline's App Server list. They provide a comprehensive and up-to-date evaluations of most every java application server.
You may also want to read
Java World's Java Application Servers page. Although it does not provide a ranking, it has good reviews of most every product out there.
joe
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Joe McGuire -
SCJP, BEA WebLogic Cert Dev
[This message has been edited by Joe McGuire (edited December 06, 2001).]
