This document describes a mobile learning project called MoULe carried out in Italian secondary schools. The MoULe system allows students to access a collaborative learning platform from computers and mobile devices. It includes tools for searching and sharing information, communicating, and annotating locations with geotags. Students used the wiki and mobile devices to organize information from multiple sources into collaborative knowledge spaces. They found geotagged photos and audio notes more engaging than texts. Motivation was an important factor for teachers and students.