Data that is provided by Facebook to page managers indicate that over 80% of viewers are accessing the museums page via phones or tablets. The statistics show that if 12 photos are posted, the first 4 get the most views. Likewise, if a news story has 3 paragraphs, the first one gets read the most. Videos are another example. There is a two minute video of #9 being turned and the average play time with phone users is 19 seconds.
The good thing about social media is that it reaches thousands (we have 4,800 fb followers). The bad thing is that people view a post on average for 45 seconds to a minute. The lesson is that news and/or stories posted should cover key information in the first paragraph. If a series of photos accompanies an article, the best photo (even if out of sequence) should be posted as a headline image. Cindy and I write news articles, check/edit the information, select photos and run them through photo shop, post the piece and then go back to each photo to set captions. All the work is done on two laptops and it's a challenge to condense things for a viewing on a small screen but that's what our audience is using.