1. 2004: ICTAC2004, Guiyang, MCU2004, Saint-Petersburg (some pictures), DLT'04, Auckland, AMAST 2004, Stirling, Journees Montoises d'Informatique Theorique, Liege, DCFS04, London, Ont.
  2. 2005: Computational Aspects and Modeling of Complex Systems, Valparaiso, The Grand Challenge in Non-Classical Computation, York, RC05, Ischia, QPC'05, Dubna, DCFS'05, Como, DLT'05, Palermo, Natural Processes and Models of Computation, Bologna, ITW05, Rotorua, ICTAC05, Hanoi, UC'05, Sevilla, CAI05, Thessaloniki, SEEFM'05, Ohrid.
  3. 2006: 4 Escuela De Verano En Sistemas Complejos De Valparaiso, Valparaiso, Gr. C. Moisil 100, Bucharest, Dagstuhl Seminar 06051 (also Marcus' Page), CANT 2006, Liege, Workshop on Information Theories, Muenchenwiler, DLT'06, Santa Barbara, Turing Days 2006, Istanbul, ICTAC'06, Tunis, UC'06, York, TAMC'06, Beijing, CIAA 2006, Taipei, AMAST'06, Kuressaare, Estonia
  4. 2007: TAMC2007, Shanghai, China, Mathematical Truth and Provability in the 21st Century at the 6th Congress of Romanian Mathematicians, Bucharest, Romania, DLT'07, Turku, Finland, CIAA2007, Prague, Czech Republic, DCFS 2007, High Tatras, Slovakia, UC'07, Queen's, Canada, NKS 2007, Burlington, USA, Combinatorics and Related Areas. An Workshop in Honour of the 65th Birthday of Ioan Tomescu, Bucharest, Romania, SACS'2007, Graz, Austria, Chaitin's 60th Birthday Celebrations, SEEFM07, Thessaloniki, Greece, Workshop on Computability and Complexity, CDMTCS, Auckland, NZ, AMS/NZMS 2007, Wellington, NZ.
  5. 2008: CATS08, Wollongong, Australia, Kiwi Foo, Warkworth, NZ, FoIKS'08, Pisa, Italy, TAMC'08, Xi'an, China, DCFS2008, Charlottetown, Canada, CIAA'08, San Francisco, USA, UC'08, Vienna, Austria, Workshop on Physics and Computation 2008, Vienna, Austria, DLT 2008, Kyoto, Japan, Workshop on Reachability Problems, Liverpool, UK, The 20th Anniversary Conference of AE, Liverpool, UK, Grand Challenges of Unconventional Computation: Academia Europaea Informatics Section Workshop, Liverpool, UK, Workshop on Automata, Formal Languages and Algebraic Systems, Kyoto, Japan, NKS 2008: What is Computation? How Does Nature Compute?, Bloomington, USA, International Workshop on The Complexity of Simple Programs, Cork, Ireland, International Symposium on Information Theory and its Applications, Auckland, NZ. Chaitin 60th Birthday Celebrations.
  6. 2009: The Science and Philosophy of Unconventional Computing, Cambridge, UK, Symposium Information Processing Modern Perspectives, Turku, Finland, 6th Annual Conference on Theory and Applications of Models of Computation 2009, ChangSha, China, 4th Conference on Logic, Computability and Randomness, Marseille, France, 14th International Conference on Implementation and Application of Automata, Sydney, Australia, 4th International Computer Science Symposium in Russia, Novosibirsk, Russia, Just One Universal Algorithm, Pisa, Italy, ICTAMI2009, Alba Iulia, Romania, 8th International Conference on Mathematical Knowledge Management, Grand Bend, Ontario, Canada, Unconventional Computing 2009, Azores, Portugal, Hypercomputation Workshop, Azores, Portugal, Workshop on Physics and Computation 2009, Azores, Portugal, International Workshop on Natural Computing, Himeji, Japan, Workshop on Reachability Problems, Paris, France, Advances in the Theory of Computing, Timisoara, Romania, Theoretical Computer Science. From Foundation to Application, Nis, Serbia, Workshop on Optical SuperComputing, Bertinoro, Italy, Riemann Hypothesis Day, Auckland, NZ, Software Engineering Research, Management and Applications, Hainan Island, China.
  7. 2010: Conference on Logic, Computability and Randomness, Notre Dame, USA, Developments in Computational Models 2010: Causality, Computation, and Physics, Edinburgh, UK, Infinite and Infinitesimal in Mathematics, Computing and Natural Sciences, Cetraro, Italy, CiE 2010: Computability of the Physical - Special Issue of MSCS, Azores, Portugal, DLT 2010, London Ontario, Canada, Unconventional Computing 2010, and Hypercomputation 2010, Tokyo, Japan, Workshop on Reachability Problems, Brno, Czech Republic, Workshop on Physics and Computation 2010, on the Nile, Egypt, Theoretical Computer Science (TCS 2010), World Computer Congress, Brisbane, Australia, Workshop on Reachability Problems 2010, Brno, Czech Republic.
  8. 2011: ITA2011, Cebu Philippines, CATS 2011, Perth, Australia, Central European Quantum Information Processing Workshop, Znojmo, Czech Republic, UC2011, Turku, Finland, Physics and Computation 2011, Turku, Finland, HyperNet 2011, Turku, Finland, TAMC2011, Tokyo, Japan, The Seventh Congress of Romanian Mathematicians, Brasov, Romania, Workshop on Reachability Problems, Genova, Italy, Interdisciplinary Symposium on Complex Systems, Halkidiki, Greece, Dynamics of Complex Systems, Valparaiso, Chile, Asian Logic Conference, Wellington, NZ.
  9. 2012: ConstruMath South 2012, Westport, NZ, WTCS2012, Auckland, The Turing Legacy, Auckland, THE ALAN TURING YEAR, Semantics and Syntax: A Legacy of Alan Turing, Cambridge, UK, The Incomputable, London, UK, TAMC 2012, Bejing, China, Reachability Problems, Bordeaux, France, DLT2012,Taipei, Taiwan, UCNC, Orleans, France, Interdisciplinary Symposium on Complex Systems, Kos Island, Greece.
  10. 2013: AISB Symposium on Music and Unconventional Computing, University of Exeter, UK, Interdisciplinary Symposium on Complex Systems, Prague, Czech Republic, Numerical Computations: Theory and Algorithms, Falerna, Italy, UCNC2013, Milano, Italy, Anniversary Conference: Faculty of Science - 150 Years, University of Bucharest, Romania, Confluence 2013, Amity University Uttar Pradesh, India, History and Philosophy of Computing, Paris, France.