Social media has largely devoured traditional marketing channels, but the tools provided by Facebook, Twitter, et al. are more focused around individual users, not businesses. If you want to have better control over your brand's social network profiles, take a look at SMhack Business. It's a centralized hub for publishing and managing content, and right now you can get lifetime access from the Boing Boing Store for $49.99.
Not only does it allow you to reply to messages across all of your accounts, it makes it easy to schedule posts and keep a high-level gauge of your social activity. For larger teams, you can allocate tasks to multiple collaborators, track campaign progress, and aggregate analytics into detailed reports. This platform even gives you detailed insights into your competitor's content strategy, so you can stay on top of the game.
A lifetime subscription to SMhack Business will help you streamline you digital marketing, and it currently costs $49.99 in the Boing Boing Store.