This can be targeted at someone with a public profile, such as the death and rape threats directed at activist Caroline Criado-Perez via Twitter in 2013 for her campaign to have Jane Austen featured on banknotes, which led to two convictions.
There you'll find the Evangelical Atheist "helping mankind overcome religion" and direct action activists the Rational Response Squad, "fighting to free humanity from the mind disorder known as theism".
The Age of Stupid is written and directed by activist filmmaker Franny Armstrong (who made the documentary McLibel), and has used a method called "crowd-funding" - a mixture of social events, mass email pleas and website donations.
We need brave policy makers reaching across the aisles, and bold direct action activists in inflatables putting their bodies between whales and harpoons.
That journey the AZT researchers were on, urged and directed by activists like Larry Kramer, did lead somewhere; there is such a thing as progress, it turns out.
Mr Nicholson, a hero to some of the protesters, agrees, describing the crowds as an odd fellowship of "direct-democracy activists, left-wing anarchists, liberals and right-wing extremists".The election commission has warned local committees that some provocateurs may try to pull stunts at voting stations on polling day.
In a similar violent vein, Sarah Palin via Twitter told her Republican followers to "reload" and "aim for" Democrats, directing GOP activists to her SarahPac website where they found a map of the country festooned with rifle scope cross-hairs over Congressional districts held by Democrats.
These brought him into direct conflict with activist shareholders and remnants of Sir Christopher's regime at the company.
Recognising this paradox perhaps, in Hamburg, thousands of artists have signed the Not In Our Name manifesto, signalling a move from artistic statements of protest to direct anti-eviction activist struggles.
