http://www.imaps.org    
IMAPS - International Microelectronics And Packaging Society

http://www.dscc.dla.mil
Download mil specs and standards in PDF format

http://nepp.nasa.gov/whisker
Great source for learning about tin whiskers in mil space applications

http://www.flipchips.com
Dr Flip Chip  - George Riley - lots of wisdom here! Great website, very informative!

http://www.jedec.org/download/search/default3.cfm
JEDEC - Joint Electron Device Engineering Council Home Page

http://www.ors-labs.com

Oneida Reserach Services..A great test lab for RGA, hermeticity testing, SEM analysis and many other analytical servies.

http://www.norcomsystemsinc.com
For the latest developments on Optical Leak Testing

http://www.appliedtechnsci.com

Applied Technology and Science, Inc., provides production trouble shooting and
manufacturing engineering assistance for assembly operations. They are offer
engineering based solutions to difficult production problems or new product
ramp-up issues