Does making a significant use of taglibs affect performance? I am especially worried about the effect of all the object instantiations in the background on a high volume site.

Answer by Jayson Falkner
Taglib and performance issues are dependent on your JSP container. For most containers there is a noticeable effect. However, this issue tends to get much better with each release.

You should direct this question to the specific JSP container vendor you are using.