I'm going on a limb: the #1 communication trend in 2012 will be internal. I predict that the rise of cloud services will improve our business processes and encourage collaboration across the enterprise. Services like Microsoft 365, Google Apps, Salesforce and others will allow us to collaborate on a single document, retiring the old method of emailing out a draft, everyone making edits and saving as a new document, then emailing them back out. This traditional method clutters inboxes, dramatically increases storage, and can be a nightmare for record, data, and knowledge management. Document storage and collaboration in the cloud will alleviate all of these issues.