1. Abel, F., Herder, E., Marenzi, I., Nejdl, W., Zerr, S.: Evaluating the benefits of social annotation for collaborative search. In: 2nd Annual Workshop on Search in Social Media (SSM 2009) (2009)
2. Amershi, S., Morris, M.R.: Cosearch: a system for co-located collaborative web search. In: Proceedings of CHI 2008, pp. 1647–1656 (2008)
3. Cutrell, E., Robbins, D., Dumais, S., Sarin, R.: Fast, flexible filtering with phlat. In: Proceedings of CHI 2006, pp. 261–270 (2006)
4. Dougherty, M., van den Heuvel, C.: Historical infrastructures for web archiving: annotation of ephemeral collections for researchers and cultural heritage institutions. In: MIT6 Conference, Boston, MA (2009)
5. Dumais, S., Cutrell, E., Cadiz, J., Jancke, G., Sarin, R., Robbins, D.C.: Stuff I’ve seen: a system for personal information retrieval and re-use. In: Proceedings of SIGIR 2003, pp. 72–79 (2003)