Index[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [R] [S] [T] [U] [V] [W] [X] [Z] PageRank (Google) Pareto's Principle Pareto, Vilfredo Passini, Romedi paths, environmental legibility and pattern recognition, surveillance and personal locator devices personalization, push and pull PET (Positron Emission Tomography) scans, hippocampus and photographs Degree Confluence Project Mappr and physical objects, documents and Pirolli, Peter Platypus paradox politicians, grapevine and polyhierarchy, taxonomies Polynesian ocean travel power laws bell curves and Zipf, George Kingsley Principle of Least Effort proximity, location sensing and pull introduction personalization and RSS and punch cards push introduction personalization and RSS and |