UPDATE: So, I learned one thing about hashtags with this experiment. If your FB post is too long for Twitter and the hashtags are at the end of the FB post, they will NOT appear on your Twitter post! However, the hashtags on my FB post appeared to be live links, so I tried clicking on them to see where they went. Surprise, surprise! FB has its own lists of hashtags! Who knew?? The map hashtag was the most interesting result because it took me to a list where people had posted photos of maps and some musical group calls "Maps."
Great update, Jeanne. Yeah, we saw this early on about FB hashtags, and that's what got us thinking about FB and Twitter and the use of effective hashtags.
Also, like you, we've completed three experimental posts now since re-linking our Twitter account to our FB author page -- all three posts have been book promo posts for the same book. Different photos, different text, but basically the same hashtags (more or less)
The first two posts DID have short intro text ---> so almost all of the hashtags at the end of the FB post ended up in the linked Twitter post. For this reason, we assumed that we were getting our main FB reach from that -- about 70 total for post #1 and #2 and about half of that was non-fan reach.
But get this: post #3 didn't get any of its hashtags pulled into the Twitter post; its intro text was too long. But its current reach in a 24 hour period is about the same as the first two posts: 81 total reach; 37 fans, 44 non-fans. So the twitter hashtags didn't seem to matter for #3.
What is sort of interesting --> for every book promo post, we make customized linked photos to our book on Amazon, and FB is calling these post type "links" not timeline "photos", despite the fact that the majority of the post is actually a customized photo. Do FB algo's care abut post type?
FYI: We just tried a new thing today -- posted only a photo with no other words, no hashtags, and actually made the effort to deleted the linked Tweet from our Twitter feed. FB is recognizing the post type as a timeline photo.
It's actually not even a striking visual photo. Just one of those text photo thingys.
Really, wondering at this point how well it will do....