Electronic journals

Electronic journals, are scholarly journals or intellectual magazines that can be accessed via electronic transmission. In practice, this means that they are usually published on the Web. They are a specialized form of electronic document: they have the purpose of providing material for academicresearch and study, and they are formatted approximately like journal articles in traditional printed journals. Being in electronic form, articles usually contain metadata that can be entered into specialized databases, such as DOAJ or OACI, as well as the databases and search-engines for the academic discipline concerned.

Some electronic journals are online-only journals; some are online versions of printed journals, and some consist of the online equivalent of a printed journal, but with additional online-only sometimes video and interactive media material.

Most commercial journals are subscription-based, or allow pay-per-view access. Many universities subscribe in bulk to packages of electronic journals, so as to provide access to them to their students and faculty. It is generally also possible for individuals to purchase an annual subscription to a journal, via the original publisher.

An increasing number of journals are now available as online open access journals, requiring no subscription and offering free full-text articles and reviews to all.Individual articles from electronic journals will also be found online for free in an ad-hoc manner: in working paper archives; on personal homepages; and in the collections held ininstitutional repositories and subject repositories. Some commercial journals do find ways to offer free materials. They may offer their initial issue or issues free, and then charge thereafter. Some give away their book reviews section for free. Others offer the first few pages of each article for free. Some - such as Leonardo - start free adjunct publications online.

Most electronic journals are published in HTML and/or PDF formats, but some are available in only one of the two formats. A small minority publish in DOC, and a few are starting to add MP3 audio. Some early electronic journals were first published in ASCII text, and some informally-published ones continue in that format.

Scirus

Scirus is a comprehensive science-specific search engine. Like CiteSeer and Google Scholar, it is focused on scientific information. Unlike CiteSeer, Scirus is not only for computer sciences and IT and not all of the results include full text. It also leverages its scientific search results to Scopus, an abstract and citation database covering scientific research output globally. Scirus is owned and operated by Elsevier.

Scirus <--visit there

World Book Encyclopedia

The World Book Encyclopedia, published in the United States, is self-described as the "the number-one selling print encyclopedia in the world."The encyclopedia is designed to cover major areas of knowledge uniformly, however it shows particular strength in some fields. It is based inChicago, Illinois. The first edition (1917) contained eight volumes. New editions have since appeared every year except 1920, 1924, and 1932, with major revisions in 1930 (13 volumes), 1947 (18,000 illustrations), 1960 (20 volumes), and 1988.
Field Enterprises published World Book from 1944 to 1984. World Book, Inc., is a subsidiary of the Scott Fetzer Company, which in turn is aBerkshire Hathaway subsidiary.