This manuscript introduces the Multitouch Learning Book as a learning guide for school chemistry lessons. It is an e-book with integrated multimedia content, in which additional interactive materials are integrated. The use of chemistry lessons offers various advantages in terms of individual support, teaching methods and the combination of teaching with extra-curricular learning locations. Multitouch Learning Books can be grouped into the Huwer and Brünken (2018) model, which describes the dimensions of the use of digital media in individual learning processes. The first dimension describes the three operating modes of the tablet as an experimental tool, a learning tool, as well as a learning companion, the second dimension describes the methodological implementation of the tablet and the third dimension describes individualization. In addition, this document introduces the independently created Multitouch Learning Book on the topic of the particle model. During the preparation process, the current state of the art in research on the topics covered and the possibilities for individual funding was taken into account. In addition, an empirical study was conducted to investigate the influence on cognitive learning growth.

This paper explores a pathway to commercializing user innovations hitherto not studied, namely, the vertical diversification of a user firm into an upstream industry supplying capital goods, and subsequent coexistence of user and manufacturing units. Such coexistence creates synergies regarding innovation, marketing, and financials. It enables the manufacturing unit to benefit from user innovations in its new product development, while the user unit profits from improved tools. Yet, selling the firm's own user innovations risks loss of the competitive advantage originating from use of these innovations. We employ case evidence from firms in the fields of foundation engineering, tunnel construction, tea-packaging, and geological surveying to derive a set of five propositions regarding the conditions under which user-manufacturer diversification is attractive and viable in the long run. These conditions relate to innovation, marketing, the organization, and financial aspects. Our study offers three contributions. We show how user entrepreneurship can originate from established corporations rather than from individual user innovators; we carve out factors that favor the move toward and the success of user-manufacturer diversification; and we link user innovation and corporate strategy by showing how user innovation can affect the boundaries of organizations.

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