I currently own a resume writing business, but am also starting up a separate B2B copywriting business as well as another online marketing site. All of these ventures have very different customers, personas, and styles associated with them, yet all in some way will be linked to my name. I am trying to come up with strategies for managing my social media marketing efforts. I of course can get multiple Twitter, Digg, this site, etc, accounts, but obviously that is a force multiplier of annoyance. Has anyone faced this problem (I'd be surprised if nobody has) and what have you done, or are you doing to address it?
To clarify, I'm not only talking about managing posting to multiple places at once (I'm currently using Ping.fm for this), but also managing multiple "brands" with multiple social media accounts.