Web of Science is the website version of the
Science Citation Index. The address is:
http://isi10.isiknowledge.com/portal.cgi/WOS
but it will only work if your institution's
library subscribes to Web of Science. 

If you know an important early paper that is
relevant to your work, Web of Science will
show you all the other papers that have cited
the earlier one in their bibliographies. This
allows you to search forwards, rather than
searching backwards by looking up references 
from a recent paper or review article.

Searching forward is also possible with the
printed Science Citation Index, if this is
still published. I have not used it since our
library started subscribing to Web of Science
4 or 5 years ago.

You can search much of the literature using
PubMed (http://www.ncbi.nlm.nih.gov/PubMed/),
which is free for everyone, a gift to the
world from the US Government. (Not everything
they do is bad.) Pubmed covers only the
biomedical field and cannot be used for 
forward-looking citation searches, but it's
still very useful. Web of Science covers the
whole gamut.

-- 
-------------------------
John A. Kiernan
Department of Anatomy and Cell Biology
The University of Western Ontario
London,   Canada   N6A 5C1
   kiernan@uwo.ca
   http://publish.uwo.ca/~jkiernan/
___________________________________
pooja chopra wrote:
> Can you please let me know what is the Web of Science? Is it a journal or a website?

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