Jot notes to yourself, and then create a URL, so you can retrieve the note, regardless of where you are. Share the URLs with your other selves, or with others.
L. Dragan, A. Passant, T. Groza, and S. Handschuh. Proceedings of the 1st Workshop on Knowledge Injection into and Extraction from Linked Data (KIELD2010), (October 2010)
H. Maldonado, B. Lee, S. Klemmer, and R. Pea. Minds, minds, and society. Proceedings of the Computer-supported Collaborative Learning Conference, page 486-495. New Brunswick, NJ, International Society of the Learning Sciences, (2007)