I have a main domain (and website), then another shorter domain (abbreviation of the 1st one) that points to the same site. Trouble is, each of the addresses have their own backlinks and PR. The forwarding domain doesn't get acknowledged on searches but is the account I use for email. Can I 'tell' google this is the same thing (I doubt it) or is there nothing I can do apart from contact each of the links and ask them to all link to the same domain name?
What you should do is redirect all of those domain/subdomains to one main domain and also, redirect the http://www.domain and http://domain to one. You can do this using .htaccess: http://www.webconfs.com/how-to-redirect-a-webpage.php
Cheers. The forwarding domain is held with FreeParking and their user control panel is basic to say the least. Looks like I just can fill in the rest after http:// www
That's what myp said, make a 301 (that's a permanent) redirect by using .htaccess. This will solve the problemen I recommend always using redirects, a abc[dot]com to www[dot]abc[dot]com redirect for example. Without that redirect you get duplicate content The [dot]s are because I am not able to post links for now, just registered here
Actually I don't get your situation. If you have two different sites and you think that the other one should pass its backlink to the your main one using a redirect, beware for it may considered manipulation.
It's the same site. I set up a website, let's call it domainsreunited for the purpose of the exercise. Over time people started referring to the site as "domsutd" so I registered that domain and also my email address is @domsutd rather than the original address. Both the URLs have backlinks and PR, but both land on the same page. Trouble is the place where the short domain is held only offer a simple forwarding service and I'd have to use (and pay for) their hosting to get the server stuff like 301 redirects.
I think it forwards rather than redirects. If you land on the site from one it shows different backlinks and PR than the other. Didn't know if there was a way to tell google it's the same site and combine the links/PR - and to do it without server access on a forwarding domain (ruling out 301s)