RESUMEN El termino de computacion ubicua hace referencia a ambientes donde los dispositivos que poseen capacidades de procesamiento, almacenamiento y comunicacion (telefonos moviles, personal digital assistant, etc.) puedan comunicarse de forma inteligente y ordenada teniendo una conciencia propia del entorno que los rodea, todo esto debe ser transparente para los usuarios.Las redes inalambricas ad hoc tambien conocidas como MANETs (Mobile ad hoc Networks) se presentan como una magnifica tecnologia de comunicacion para este tipo de entorno y aplicaciones. En las redes MANETs, la colaboracion entre los dispositivos se da en forma de servicios ofrecidos por los mismos dispositivos (nodos), los cuales son descubiertos utilizando protocolos de descubrimientos de servicios, En este articulo se pretende hacer una vision de los diferentes protocolos descubridores de servicios mas conocidos en el mercado para el esquema de computacion ubicua. ABSTRACT In computation, the term ubiquitous refers to environments where devices that have capacities of processing, storage and communication (mobile phones, personal digital assistant, etc.) can communicate in a smart and ordered way, having their own conscience about their surroundings, everything must be transparent to the users. Wireless networks ad hoc, also known as MANETs (Mobile ad hoc Networks), are represented as a magnificent technology of communication to this kind of environment and applications. In MANETs networks, collaboration among devices is given in an offered services form by the devices themselves (nodes), which are discovered using protocols of discoveries of services. In this article is pretended to make a review of the different protocols of discoveries of services more common in the market for the scheme of ubiquitous computation.