Please add here any workshop you like.
2012:
January 9 - March 16, 2012 Joint Universities Accelerator School
June 6 - 19, 2012 European School of High-Energy Physics
July 5 - 12, 2012 International Scientific Baikal Summer School on Physics of Elementary Particles and Astrophysics
July 11 - 18, 2012 Trans-European School of High Energy Physics
July 15 - 21, 2012 LatinoAmerican Workshop on High Energy Physics
July 25 - August 3, 2012 International Summer School on Astroparticle Physics
July 30 - August 9, 2012 CTEQ Summer Workshop & Conference on QCD Analysis and Phenomenology
August 6 -17, 2012 Hadron Collider Physics Summer School
August 13 - 24, 2012 CERN School of Computing
August 19 - 25, 2012 PSI Zuoz Summerschool
August 20 - September 1, 2012 International School Cargese 2012
September 4 - 14, 2012 Herbstschule für Hochenergiephysik
September 8 - 26, 2012 Corfu Summer Institute
September 16 - 24, 2012 International School of Nuclear Physics
October 14 - 27, 2012 2012 Asia-Europe-Pacific school of high energy physics
October 28 - November 9, 2012 CERN Accelerator School
2010:
February 13-20, 2010: ITEP Winterschool;
July 19-30,2010: Cargese Summer School 2010: Physics at TeV Colliders - From Tevatron to LHC
August 1-7, 2010: Zuoz Summer School;
August 16-27, 2010: Fifth CERN-Fermilab Hadron Collider Physics Summer School
General HEP page to start with:
http://www.conference-service.com/conferences/high-energy-physics-and-accelerators.html
CERN page to start with:
http://cdsweb.cern.ch/events/events.py/