I noticed there aren't many resources gathered together on one page for EW needs - so here's a little list of helpful data that I can update as time goes by - let me know of any suggestions - I'll be pleased to add!
Federal Rules of Evidence
http://www.law.cornell.edu/rules/fre/#article_vii
State Rules of Evidence
http://expertpages.com/news/state_rules_of_evidence.htm
Balancing Legal Process with Scientific Expertise: Expert Witness Methodology in Five Nations and Suggestions for Reform of Post-Daubert U.S. Reliability Determinations and other good reads at below link, helpful PDFarticless Andrew W. Jurs - copy/paste:
http://scholarship.law.marquette.edu/cgi/viewcontent.cgi?article=5134&contex