It took a little time for people to figure out that cross-posting to both Facebook and Twitter platforms is rarely effective business. Inevitably one of your audience's is going to think you either don't care of don't know what you're doing.
A few years back I had a defiant DJ who thought I was doubling their workload by preventing cross-posting at a company I worked at. I called one of the head social media guru's in front of the deviant employee and asked, "What am I to make of the an employee who perpetually insists that cross-posting to Facebook and Twitter is worthwhile?"
"You should fire that person."
Message delivered.
Here are a few ideas that Webtegrity.com suggests:
Facebook networks People while Twitter networks ideas and topics.
Facebook allows you to write a book (not that anyone is going to read it). Twitter limits to 140 characters per tweet.
Facebook and Twitter allow the use of hashtags to group ideas / topics. Facebook incorporated this ideas patterned after Twitter.
You can search inside of either network for topics, people, businesses and organizations.
Facebook allowing more options is considered more difficult to use than Twitter.
Both networks are capable of allowing some customization to include your branding.
Facebook allows likes and friends while Twitter’s call to action is to follow.
Inside of Facebook you will Like or Share something. Yet inside of Twitter you will ReTweet or Favorite Something.
You can find your old elementary friends or high school love interest on Facebook. On Twitter you can find the latest topic trending – like the Oscars, News, Celebrity Stories and more.
Source: Webtegrity.com