This document summarizes the objectives and proceedings of the 2nd Effectsplus Cluster event held in Amsterdam on July 4-5, 2011. 22 research projects attended to discuss collaboration opportunities in two parallel workshops on systems/networks models and services/cloud trust and assurance. The event aimed to identify areas for collaboration, publicly available examples, and gaps for future research. Presentations were given on several projects to promote awareness, including the BIC project which coordinates international cooperation on trustworthy ICT between the EU and countries like Brazil, India and South Africa.