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Focuses on a method offered which offers a computational portfolio design procedure which can be used for a wide range of problems. Combination of existing algorithms into updated programs; What the method is based on.

Suggests a possible microscopic mechanism for the observed intermittent congestions of the Internet. Internet users not charged in proportion to use; Failure of Individuals consuming bandwidth to consider effect on overall performance of the Internet; Possibility for Internet performance to degrade as a result; Construction of a model showing short-lived spikes of congestion.

Describes several strong regularities of Web user surfing patterns discovered through extensive empirical studies of different user communities. Use of online links and search engines; Development of logarithm used in the study.

Presents a response from the author to a letter to the editor on his article about the U.S. federal rules governing the privacy of human subjects, published in the February 25 issue of the periodical "Science."