http://meta.wikimedia.org/wiki/Opening_external_links_in_a_new_window may be what you want, though it is a sitewide change.
This is what is implemented on http://www.chainki.org even though some in this forum (ha! ha!) think opening external links in a new window is rude.
Hugh
"Colleen Robledo" colleenrobledo@gmail.com wrote in message news:7bb974980607271012j3a25945ard03c1a6adffa330c@mail.gmail.com...
Hello. Is there any wiki syntax to include in [URL links] that will open the link in a new browser/window? Or do I need to revert to using regular a href and target HTML tags? The majority of my wiki users do not know HTML, so I'm hoping there's a wiki syntax alternative. Thanks, Colleen Robledo