While I do not recommend trying to fully automate all of your social media activity, as that defeats the purpose of social networking, I do recommend that businesses with an active blog find a way to re-post old blog entries. Re-posting blog entries is great for reminding your followers on great points you've made, as well as sharing that content with new followers who might not have seen the post the first time around.

It's also important that businesses use social media to share content from other sources that your followers may find interesting, but you don't want to spam them with a bunch of links just because you found 5 interesting articles to share. That kind of activity needs to spread out throughout the course of the day.