What problem is REALLY bugging you? 
Hume: I don't have a business, just an office drone; but I have to find out about legal ownership of companies all the time, when our customers issue purchase orders we have to make sure that the names on the invoices we generate match them.Changing the names in our CRM/ERP systems is a laborious process and we have to get the customer to sign legal documents confirming that all the software licenses owned by the previous company are now owned by the acquirer/new merger.I think that a website containing all the name change documents, press releases and possibly a service that tracks legal ownership (though this could be hard to scale) could be worth pursuing, along the lines of a Duns and Bradstreet ( http://www.dnb.com ) type company.It could be something like a more focused docstoc or perhaps a legal wolfram alpha.