Offline web page access using RH6.x ?

[vik router econz co nz]

There's this "make available offline" option that Window$ users have in
that otherwise awful IE program. It puts up a little red flag on the
desktop icon when a web page has changed, and caches it somehow so that
you can be advised of web page updates and access them instantly.

Is there something like this lurking in Gnome or similar on the RH CDs ?

Vik :v)