Many of our best links are to our old domain. Problem?

[limited7]

Hi, around 7 years ago the organization I'm with switched their domain name.  When doing link analysis some of our best links are to the old domain including a followed link from an article on the BBC news site.  The old domain has been 301 redirecting to the new domain for years.

Is it worth the time to contact the sites that are linking to the old domain? Or, will all or the majority of the link juice be given to the newer domain with the 301 redirect?

Thanks!

[MattRoney]

It's generally accepted that most authority survives a 301 redirect, but it's certainly not all. How worth it it is is up to you, but you would see some boost in authority if those sites were to update their links to point directly at the newer domain. Hard to say whether that'd be enough to give you a genuine boost, though.