Interesting.
Without using Reader, adding the "site:<sitename>" phrase in any Google search restricts the search to just the listed site.
So, for example:
guid site:graphisoft.com
or
guid site:archicad-talk.graphisoft.com
will search the entire graphisoft site (including ac-talk) for guid in the first case, or just ac-talk in the second.
Cheers,
Karl
One of the forum moderators
AC 27 USA and earlier • macOS Ventura 13.6.9, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB