موتور های جستجو

 

 

A: Scientific Search Engines

 

GoogleScholar

http://scholar.google.com/

Libra 

http://libra.msra.cn/Default.aspx

SCIRUS

http://www.sciencedirect.com/scirus/

Online Journals Search Engine

http://www.ojose.com/

 PdfSearchengine

http://pdfgive.net/

 

 

B: Meta Search Engines

 

Clusty

http://www.clusty.com/

Kartoo

http://www.kartoo.com/

Dogpile 

http://www.dogpile.com/

ixquick

https://www.ixquick.com/

MetaCrawler

www.metacrawler.co.uk