For the users that will not reach to have the above trackers:
For HD: HDVNBITS.org, PublicHD.se, Bit-HDTV.com, HD-bits.ro
For general/0day: Torrentshack.net, Torrentbytes.net, Filelist.ro, IPtorrents
Music: Best is rutracker.org, waffles.fm,
Elearning: Docspedia, Bytspider, elbitz
Those are sites very easy to join.