A topic thread on an internet discussion forum that has morphed onto many different sites for various reasons.
A popular thread featuring a physics brain teaser tended to start heated discussions and got in trouble with mods. Those active on it moved en mass to another site and started it over again there. Now its moved to still other sites and there are so many of these 'threads' they've literally become a cyber-strand.
by Recursive Prophet September 07, 2009