I chiefly want to distinguish between worthwhile and useless research into Albert Einstein.
Frankly, while his pseudo-science is well worthy of refutation for the garbage that it is, the man's political beliefs are another matter entirely. I will provide a list of works relevant to his unfortunate impact on sceince, but this should not be confused with his politics.
Martin Gwynne, in an otherwise perceptive and knowledgeable essay on Einstein, criticizes the fact that Einstein was offered the presidency of the state of Israel when Chaim Weizmann died in 1952. The fact is Einstein rejected it because he was disgusted at how the Israeli state turned out, and to his credit he wanted no part of it. Also to his credit, he was a left leaning pacifist (anti-war). I definitely view this as a good thing. He was persecuted by the Nazis, and after immigrating to the United States he continued to be persecuted by Meyer Lansky's friend and FBI chief John Edgar Hoover for the rest of his life. It seems to me that anyone wanting to debunk Einstein would probably be wasting their time looking into things like his alleged "Stalinism" or communist activities.
That caveat being said, here is a partial list of links on Einstein (as usual with no small thanks to levee (Sandokhan):
Adelaide Institute / Einstein Articles
http://www.adelaideinstitute.org/newsletters/n254.htm Albert Einstein, The Incorrigible Plagiarist
By Christopher Jon Bjerknes
http://itis.volta.alessandria.it/episteme/ep6/ep6-bjerk-rec.htm Albert Einstein: Prophet or Plagiarist
By Richard Moody
http://einstein52.tripod.com/alberteinsteinprophetorplagiarist/id4.html The Case Against Einstein
By Sir Arthur Lynch
(Definitive Debunking of Relativity By British Author, 1932)
The Case Against the Nuclear Atom
By Dewey Larson
http://www.reciprocalsystem.com/cana/index.htmhttp://www.reciprocalsystem.com/dbl/ Challenging Modern Physics
By Alphonsus Kelly
http://books.google.com/books?id=XVLmihZnsvUC&pg=PA295&lpg=PA295&dq=Kelly,Reliability+of+Relativistic+Effect+Tests+on+Airborne+Clocks&source=web&ots=Xv_Sklom7g&sig=RiSma4JRgDvQeFj5TQhEtq2wp_4&hl=en&sa=X&oi=book_result&resnum=2&ct=result#PPP1,M1Pierre Duhem
http://www-groups.dcs.st-and.ac.uk/~history/Biographies/Duhem.html Einstein and Modern Physics
By Nathan Martin Gwynne
http://www.alcazar.net/einstein.pdf Einstein: Another Joooish King of Deception
http://www.collectmyflock.com/CollectMyFlock/pages/20--00__THE_DECEIVER_ALBERT_EINSTEIN__3--PART_SERIES__000.html Einstein's Theory of Relativity: Scientific Theory or Illusion?
By Milan Pavlovic
http://users.net.yu/~mrp/index.html Einstein's Misconceptions of Space and Time
By Thomas Smid
http://www.physicsmyths.org.uk/relativity.htm General Science Journal
http://www.wbabin.net/Did Einstein Cheat? By Thierry De Mees
http://www.wbabin.net/physics/tdm5.pdfHerbert Dingle Was Correct By Harry Ricker
http://www.wbabin.net/science/ricker23.pdfPhoton: Fact or Fiction? By Bert Schreiber
http://www.wbabin.net/science/schreiber12.pdf Gravitation Versus Relativity
By Charles Poor
http://books.google.com/books?hl=en&id=H9AgAAAAMAAJ&dq=gravitation+versus+relativity&printsec=frontcover&source=web&ots=P71Sn681tL&sig=sSgi6SU0pubQImDq6WklSKmtQSU#PPA70,M1 Holoscience
http://www.holoscience.com/links.php The Missing Doppler Effect
By Bert Schreiber
http://padrak.com/ine/NEN_6_10_9.html Physics and Philosophy (Copenhagen School of Theoretical Physics)
By Werner Heisenberg
http://www.marxists.org/reference/subject/philosophy/works/ge/heisenb3.htm Professor Albert Einstein Unmasked
By Niall Kilkenny
http://www.reformation.org/einstein-unmasked.html Reasons Why Einstein Was Correct
By Kevin Harkness
http://www.kevin.harkess.btinternet.co.uk/reasons_einstein_wrong/reasons_einstein_wrong.htmlhttp://www.kevin.harkess.btinternet.co.uk/index.html Reflections on Relativity
http://www.mathpages.com/rr/rrtoc.htm Relativity Fraud: The Complicity of Historians and Philosophers
Compiled By Sepp Hasslberger
http://blog.hasslberger.com/2006/03/relativity_fraud_the_complicit.html Relativity Unravelled
By Hans Zweig
http://www.aquestionoftime.com/ Space, Time, and Relativity
By David Pratt
http://ourworld.compuserve.com/homepages/dp5/relativ.htmhttp://ourworld.compuserve.com/homepages/dp5/homepage.htm There Is No Time
By John Peck
http://www.johnpeckscience.com/ Was Einstein Wrong About Special Relativity?
By Darrell Williams
http://www.americanchronicle.com/articles/44738 What Is Wrong With Relativity?
By G. Burniston Brown
http://homepage.ntlworld.com/academ/whatswrongwithrelativity.html Where Dr. Einstein Went Wrong
By Brother Jonathan
http://www.brojon.org/frontpage/EINSTEIN-WENT-WRONG.htmlhttp://www.brojon.org/frontpage.html