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Science  25 Jun 1999:
Vol. 284, Issue 5423, pp. 2051
DOI: 10.1126/science.284.5423.2051b

Journals watch. No time to swing by the library to scan the latest biology journals? This Web portal posts the current covers of The New England Journal of Medicine, Development, and other publications, plus links to over 100 journal home pages (where you can usually see the table of contents and sometimes abstracts). The site also highlights hot papers and connects to MEDLINE. www.cshl.org/medline

Teaching assistant. Need a diagram of a codon or the citric acid cycle, or a schematic showing how DNA is inserted into a plasmid (a loop of DNA found in bacteria) so it can be copied? You can download for free dozens of molecular biology visuals, some with definitions and explanations, at www.accessexcellence.org/AB/GG

Martian chronicler. Red Planet buffs can stay informed at this site with links to news articles and its own features, covering topics like possible martian fossils and the launch of Mars Express in 2003. The site is sponsored in part by a year-old outfit, the Mars Society, which advocates human travel to the planet. http://www.marsnews.com/

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