The Galactic O-Star Spectroscopic (GOSSS) and Northern Massive Dim Stars   (NoMaDS) Surveys, the Galactic O-Star Catalog (GOSC), and Marxist Ghost   Buster (MGB)
  There are several ongoing massive-star (mostly of spectral type O) surveys that are significantly increasing the quality and quantity of the spectroscopic information about these objects. Here we discuss and present results for two of them, GOSSS and NoMaDS. We also discuss recent and future developments on the Galactic O-Star Catalog and announce the upcoming availability of Marxist Ghost Buster, an IDL code that attacks spectral classification (hence the name) by using an interactive comparison with spectral libraries. 
J. Ma\'iz Apell\'aniz, A. Pellerin, R. H. Barb\'a, S. Sim\'on-D\'iaz,   E. J. Alfaro, N. I. Morrell, A. Sota, M. Penad\'es O...
astro-ph.SR astro-ph.GA