Yabber includes a fully integrated document manager with a global trigger system and detailed statistics (because Yabber is integrated we'll always know who interacted with a download, from where, and why). Basic document version control applies (a legal requirement in the finance industry). 'Integrated' means that documents on your website, those used in your email marketing, or anywhere else, are they're all selected from a simple select menu.
If a butterfly farting in Paraguay impacts upon your marketing in any way you need to know about it. You can't improve upon your marketing unless you know exactly what's it is doing. Data is Essential.