Where do I find info on...

Where do I find info on Delta’s Song? I’m working on a research project and I’m at my wit’s end. I know Delta created Song in 2003 with a huge marketing campaign. In 2006, they discontinued the operation. Does anyone know what happened? Why did they create it? Why was it not successful? How much did they lose? I’m looking for any good sources of info with factual information. A Google search returns only outdated articles with no detailed info. Wikipedia is not particularly helpful either. Any ideas on where else to look? Would SEC filings show anything? Thanks a lot in advance for any thoughts.

Check out the MDA section on the 10-K for 2003-2006