customization - Is there any application/software/web tool that creates customized search engine -

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i wonder if there application/software or tool creates customized search engine , results classified according websites i've defined before.

what want combining world wide news websites lets 4 sites , when search global warming results classified according sites specified earlier.

cnn.com retrieves 509655 global warming

bbc.co.uk retrieves 303255 global warming

abc.com retrieves 4588 global warming

aljazeera.com retrieves 2699 global warming

is possible? there can this

give apache solr try.

http://lucene.apache.org/solr/

from website:

solr popular, blazing-fast, open source enterprise search platform built on apache lucene™


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