I've put together a custom google search for Open Source Intelligence related topics, it can be found here:
http://www.google.com/cse/home?cx=013791148858571516042:eygbr9xc-ys
It currently searches the following sites:
http://www.turbo10.com/
http://www.deepdyve.com/
http://infomine.ucr.edu/
http://vlib.org/
http://www.intute.ac.uk/
http://aip.completeplanet.com/aip-engines/browse?thisPage=%2Fbrowse%2Fbrowse.jsp&successPage=%2Fbrowse%2Fbrowse.jsp&errorFlag=&errorMsg=&event=loadPageEvent&directPage=&directSection=4&treeQueryExpr=&treeQueryType=phrase&treeQueryTarget=tree
http://www.infoplease.com/index.html
http://www.deeppeep.org/
http://www.incywincy.com/
http://www.deepwebtech.com/
http://www.scirus.com/srsapp/
http://www.techxtra.ac.uk/index.html
http://www.osint.org.uk/
http://www.phibetaiota.net/
http://www.onstrat.com/osint/
http://extremesearcher.com/handbooklinks.html#chap1
http://rr.reuser.biz/
http://osintdaily.blogspot.com/
http://www.reversenumberdatabase.com/416-524
I will be adding more sources as I come across them.
