Thanks mate i was too looking for a good mass url shortner ...Yes Scrapebox can do this, its an add-on that you need to install once you have Scrapebox.
I do it with scrapebox, but most sites offer an api to do this somehow automated.
I actually use the external dupe remover tool from sb but this is limited to one file.
I wrote an application that can take 2 files, one with the root domains and one new scraped domains. Any domain from file 1 gets removed from file 2. That way i can keep my lists allways clean by not getting the same domain names in another list....