La percepción real de que hay una internet multimedia invisible para Google aumenta día a día. Para buscar vídeos y audio uso alltheweb.
En la Wikipedia:
AlltheWeb is a major search engine. It was debuted in mid-1999 introduced by Fast Search and Transfer and used primarily as a show piece site. Fast started their search engine in 1997.
AlltheWeb in fact had a few advantages over Google, such as a fresher database, more advanced search features, search clustering and a completely customizable look. In February 2003 Fast's web search division was bought by Overture. In March 2004 Overture itself was taken over by Yahoo!. Shortly after Yahoo!'s acquisition, the AlltheWeb site started using Yahoo!'s database and some of the advanced features were removed, such as FTP search.
Para muestra un botón: podcast.