One of the websites I maintain has moved to a new link (it's own domain).

ie  It has moved from a link like:

   (A) http://www.oldcompany.com/myblah/

       to a link like:

   (B) http://www.myblah.com

but Google is still indexing it through the old link.  In search
results the old link is outranking the new link.

What should I place at the old link "http://www.oldcompany.com" to
indicate to Google's bot that the link has moved?  Or how can we
inform Google's bot that it has moved?  We have updated all the
referring links on the net to the new domain.

Currently the oldlink shows identical content to the new link.  Is this wrong?

Hi there,

First of all, it takes a while for Google to notice all the changed
links. Once it realises that all the links now point to your new site,
and none point to the old site, the new site should rank higher. So
when Google next updates their index (perhaps a month from now), all
should be fine.

Google recommends that you only have your content on one site. The
best solution is to remove your old site from the web, and submit the
URL to Google. Google will see that it is no longer there, and remove
it from the index.

"Don't create multiple pages, subdomains, or domains with
substantially duplicate content."
://www.google.com/webmasters/guidelines.html

Submit URL
://www.google.com/addurl.html

The other option is to use a HTTP 301 (permanent) redirect.
Information on this and all aspects of removing your site from
Google's index can be found on this official page:

Remove Content from Google's Index
://www.google.com/remove.html


Best wishes,
robertskelton-ga

Answer was ok.