For my own part I struggle to find data that's strewn across frequently deprecated PDF's, salesforce, one-drive / sharepoint, mailing list archives, a home-spun knowledge base, yammer, an aging twiki instance, and possibly a few more information repositories. And I work in a relatively small and tech-savvy organisation. So I definitely feel the pain you're trying to cure. :)

'Cloud' is tricky. No two people agree what that word means for starters. In terms of a knowledge repository / index / retrieval system -- for many enterprises, when talking about core institutional knowledge, 'manage yourself' is not the opposite of 'in the cloud'.