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A common position amongst social media platforms and online content aggregators is their resistance to being characterized as media companies. Rather, companies such as Google, Facebook, and Twitter have regularly insisted that they should be thought of purely as technology companies. This paper critiques the position that these platforms are technology companies rather than media companies, explores the underlying rationales, and considers the political, legal, and policy implications associated with accepting or rejecting this position. As this paper illustrates, this is no mere semantic distinction, given the history of the precise classification of communications technologies and services having profound ramifications for how these technologies and services are considered by policy-makers and the courts. ; Una postura común entre las plataformas de redes sociales y los agregadores[1] de contenido es su resistencia a ser caracterizados como empresas mediáticas. En cambio, compañías como Google, Facebook y Twitter insisten reiteradamente en que deben ser consideradas como empresas puramente tecnológicas. Este artículo critica la posición que sostiene que estas plataformas son compañías tecnológicas en lugar de empresas de medios, explora la racionalidad que subyace a esta idea y tiene en cuenta las implicancias políticas, legales y de política pública asociadas con la aceptación o el rechazo de esta postura. Como ilustra este artículo, no se trata de una mera distinción semántica, ya que la precisa clasificación de los servicios y las tecnologías de comunicación a lo largo de la historia tiene profundas ramificaciones sobre cómo estas tecnologías y servicios son considerados por quienes elaboran políticas públicas y por las cortes judiciales. [1] N. del T.: En su versión original, el artículo utiliza en algunas ocasiones la palabra "agregadores de contenidos" [content aggregators] y en otras se refiere a "curadores de contenidos" [content curators]. En esta traducción se optó en la mayoría de los casos por la noción de "agregadores de contenidos" por ser el término más utilizado en español, y porque alude de modo más cabal a la tarea de selección y organización de contenidos que realizan estas empresas. ; Uma posição comum entre plataformas de mídia social e agregadores de conteúdo é sua resistência a serem caracterizadas como empresas de mídia. Em vez disso, empresas como Google, Facebook e Twitter insistem repetidamente em que devem ser consideradas como empresas puramente tecnológicas. Este artigo critica a posição de que essas plataformas são empresas de tecnologia em vez de empresas de mídia, explora a lógica por trás dessa idéia e leva em conta as implicações políticas, legais e de políticas públicas associadas à aceitação ou rejeição desta posição. Como ilustra este artigo, não é uma mera distinção semântica, porque o histórico da classificação precisa de serviços e tecnologias de comunicação tem ramificações profundas em como essas tecnologias e serviços são considerados por aqueles que elaboram políticas públicas e pelos tribunais judiciais.

Context. Many massive stars have nearby companions. These hamper a characterization of massive stars through spectroscopy. Aims. We continue to obtain spatially resolved spectroscopy of close massive visual binaries to derive their spectral types. Methods. We used the lucky spectroscopy technique to obtain a large number of short long-slit spectroscopic exposures of 19 close visual binaries under good seeing conditions. We selected those with the best characteristics, extracted the spectra using multiple-profile fitting, and combined the results to derive spatially separated spectra. The results were analyzed in combination with data from lucky imaging, regular intermediate-resolution single-order spectroscopy, and échelle high-resolution spectroscopy. Results. The new application of lucky spectroscopy has allowed us (among other results) to [a] spatially disentangle two O stars (FN CMa B and 6 Cas B) with brighter BA supergiant companions for the first time; [b] determine that two B stars (α Sco B and HD 164 492 B) with close and more massive companions are fast rotators (in the second case, solving a case of mistaken identity); [c] extend the technique to cases with extreme magnitude differences (the previous two cases plus CS Cam A,B), shorter separations (HD 193 443 A,B), and fainter primary magnitudes down to B = 11 (HD 219 460 A,B); [d] spatially disentangle the spectra of stars with companions as diverse as an A supergiant (6 Cas A), a Wolf-Rayet star (HD 219 460 B = WR 157), and an M supergiant (α Sco A); [e] discover the unexpected identity of some targets such as two previously unknown bright O stars (HD 51 756 B and BD +60 544) and a new member of the rare OC category (HD 8768 A); and [f] identify and classify (in some cases for the first time) which of the components of four visual binaries (σ Ori, HD 219 460, HD 194 649, and HD 191 201) is a double-lined spectroscopic binary. For another seven systems (FN CMa, σ Sco, HD 51 756, HD 218 195, HD 17 520, HD 24 431, and HD 164 492), we detect signs of spectroscopic binarity using high-spectral-resolution spectroscopy. We also determine the limits of the technique. ; J.M.A., C.F., A.S., M.P.G., and G.H. acknowledge support from the Spanish Government Ministerio de Ciencia through grant PGC2018-095049-B-C22. R.H.B. acknowledges support from the ESAC Faculty Visitor Program. I.N. and S.S.-D. acknowledge support from the Spanish Government Ministerio de Ciencia through grant PGC2018-093741-B-C21/22 (MICIU/AEI/FEDER, UE). S.S.-D. also acknowledges funding from the Spanish Government Ministerio de Ciencia through grants SEV 2015-0548 and CEX2019-000920-S, and from the Canarian Agency for Research, Innovation and Information Society (ACIISI), of the Canary Islands Government, and the European Regional Development Fund (ERDF), under grant with reference ProID2017010115.

Context. Multiplicity in massive stars is key to understanding the chemical and dynamical evolution of galaxies. Among massive stars, those of O type play a crucial role due to their high masses and short lifetimes. Aims. MONOS (Multiplicity Of Northern O-type Spectroscopic systems) is a project designed to collect information and study O-type spectroscopic binaries with δ > −20°. In this first paper we describe the sample and provide spectral classifications and additional information for objects with previous spectroscopic and/or eclipsing binary orbits. In future papers we will test the validity of previous solutions and calculate new spectroscopic orbits. Methods. The spectra in this paper have two sources: the Galactic O-Star Spectroscopic Survey (GOSSS), a project that obtains blue-violet R ∼ 2500 spectroscopy of thousands of massive stars, and LiLiMaRlin, a library of libraries of high-resolution spectroscopy of massive stars obtained from four different surveys (CAFÉ-BEANS, OWN, IACOB, and NoMaDS) and additional data from our own observing programs and public archives. We have also used lucky images obtained with AstraLux. Results. We present homogeneous spectral classifications for 92 O-type spectroscopic multiple systems and ten optical companions, many of them original. We discuss the visual multiplicity of each system with the support of AstraLux images and additional sources. For eleven O-type objects and for six B-type objects we present their first GOSSS spectral classifications. For two known eclipsing binaries we detect double absorption lines (SB2) or a single moving line (SB1) for the first time, to which we add a third system reported by us recently. For two previous SB1 systems we detect their SB2 nature for the first time and give their first separate spectral classifications, something we have also done for a third object just recently identified as a SB2. We also detect nine new astrometric companions and provide updated information on several others. We emphasize the results for two stars: for σ Ori AaAbB we provide spectral classifications for the three components with a single observation for the first time thanks to a lucky spectroscopy observation obtained close to the Aa,Ab periastron and for θ1 Ori CaCb we add it to the class of Galactic Of?p stars, raising the number of its members to six. Our sample of O-type spectroscopic binaries contains more triple- or higher-order systems than double systems. ; Several authors acknowledge support from the Spanish Government Ministerio de Ciencia, Innovación y Universidades through different grants: AYA2016-75 931-C2-1/2-P (J.M.A., E.T.P., A.S., and E.J.A.), AYA2015-68 012-C2-1/2-P (E.T.P., I.N., S.S.-D., J.L., and A.M.), AYA2016-79 425-C3-2-P (J.A.C.), and SEV2015-0548 (S.S.-D.). R.H.B. acknowledges support from the ESAC Faculty Council Visitor Program. R.H.B. and J.I.A. were also supported by the Dirección de Investigación y Desarrollo de la Universidad de La Serena through projects PR18 143 and PR16 142, respectively. S.S.-D. acknowledges support from the Gobierno de Canarias grant ProID2017010115.