In the era of infovore, we humans constantly hunger for more knowledge.
Micro-learning refers to short-term learning activities on small learning units. In our contemporary mobile/web society, micro-learning pertains to small pieces of knowledge based on web resources. Micro-learning falls into the group of informal learning processes. The existing web and mobile services have great potential to support informal learning processes, especially micro-learning. However, several specific aspects need to be considered. In this paper, we propose a micro-learning model based on three technical aspects: (i) ubiquitous learning resource acquisition; (ii) cloud-based data management; and (iii) tag-based regulation of learning processes and content. A micro-learning prototype consisting of an Android application and a web browser add-on is evaluated in the use case of bilingual vocabulary learning. The initial prototype evaluation study shows promising results in enhanced flexibility in personal learning content creation and increased efficiency in filling knowledge gaps.