The ACM Hypertext Conference is the main venue for high quality peer-reviewed research on hypermedia theory, systems and practices. The Web, Semantic Web, Web 2.0, Social Networks and collaborative hypermedia environments are all manifestations of the success of hypermedia research.
The Hypertext Conference provides the forum for all types of research concerning hypermedia such as: advanced structuring mechanisms, narratives and storytelling, system architectures, social tagging, context-aware and adaptive hypermedia as well as the knowledge that can be derived from analysis of effects of hypermedia on society.
On June 6 and 7 the TU/e also hosts the conference E-learning and Mathematics. See http://www.telmme.tue.nl/ELAM2011/ for details.
You can use system to support your social life at Hypertext 2011.