The neological issue in the OSLL is a component of the wider framework of the research plan Creation of a Lexical Database of the Czech Language of the Beginning of the 21st Century (2005–2011, head – K. Oliva). The construction of the lexical collections (archives of lexical dynamics) is dealt with by the excerption section; the theoretical understanding and lexicographic treatment are assured by an independent working group of lexicographers. Thanks to the research plan being resolved, it was possible to ensure the continual complementation of the neological excerption, modify the method of the accumulation of the material in connection with the new tasks of the department and modernise the software equipment (in connection with that to make part of the neological material accessible to the wider public). These results are built on by the theoretical and practical activities of the neological working group, focusing on the treatment of new material (2002–2010).