A visual tango dictionary:

    http://www.youtube.com/watch?v=SQDByeCCZxw 

    see in particular, starting at 12:06: giros completos--naturally in 6 counts: 

    I think they are misnaming this figure in the video, but what do I know? 

tango inside waltz frame--from Dancing with Stars:

    http://www.youtube.com/watch?v=b7S3u431_Wg 

    http://www.youtube.com/watch?v=Mj_uBQkcpXM 

valse:

    http://www.youtube.com/watch?v=RfOM8pxafzg&feature=related  

    http://www.youtube.com/watch?v=bRQGaPbeaPI&feature=autoplay&list=PLE8B02273552DA733&playnext=1 

    cadena (outside chain) instructional from Seattle--naturally in 5, I think, but it could be in six counts:

        http://www.youtube.com/watch?v=vBEofe49aek

classic:

    http://www.youtube.com/watch?v=3N1tbv5Z6Kk&feature=watch-vrec

    http://www.youtube.com/watch?v=vLuK-ddvu34&feature=related

modern(eclectic--nuevo tango):

    http://www.youtube.com/watch?NR=1&v=nk7r-eoVXOM&feature=endscreen 

founders of cosmotango:  (formerly the Tango Investigation Group)

    http://www.youtube.com/watch?v=6inw_V_a1W0

    http://www.youtube.com/watch?v=L0E7rCcBmjc

    http://www.youtube.com/watch?v=HLn0hG5bBFM

    http://www.youtube.com/watch?v=vTzJ794VXiU 

Homer & Christine Ladas (start of a long didactic playlist):

    http://www.youtube.com/watch?v=ooktPycpua4&list=PL_HUYA-KWRbeQyWAI6UfP9NE8KleAOCIp 

Another, more eclectic didactic playlist:

    http://www.youtube.com/watch?v=NCuhqLoVcqQ&list=PLE619D0EEEEE07334 

local:

    http://www.youtube.com/watch?v=pBsG1qsixBI

circular colgadas:

    https://www.youtube.com/watch?v=Vx0DRH-2F28&t=380s

    https://www.youtube.com/watch?v=Vi9wrXuZ5A0&list=RDVi9wrXuZ5A0

    https://www.youtube.com/watch?v=yu9oP0yMB4g&list=RDyu9oP0yMB4g