Some of the segments we have used on Redland City's social media include:
Flashback Friday: historic images on social media
Redland Local / redlandsanyday: Crowdsourced photos of the Redlands
Environmental segments: Magpie Monday, Weed of the Week
Storm warnings: posting storm warnings to grow an audience for disaster management communications
For more information, see my presentation Building an online community in Redland City:
http://commsr.us/1tpkwGj