Narrable is an app which seeks to “Capture the voices that give life to your photos.” It went out of beta in December 2012, and has some good features.
http://www.speedofcreativity.org/2013/02/09/cell-phones-digital-storytelling-with-narrable/
DawsonITE is a blog devoted to Educational Technology. It's compiled by Rafael Scapin, Coordinator of Educational Technology at Dawson College in Montreal (Canada).