You can get a free copy of the Boris Continuum Glitters Unit (normally $99) by Tweeting. You have to go to a web page and enter your Twitter username and password, and it will then send out a Tweet and ask for an email address to send the registration information for the software. Promotion ends on Wednesday, January 26, 2011.
About Glitters: This package includes OpenGL hardware-accelerated effects filters that will generate glittering sparkles and specular highlight effects, ray bursts, and sharp catchlight reflections. Parameter controls include brightness, scale, color, and the number of rays that each filter emits.
Go to this page to Tweet: Tweet for a Free Boris Continuum Glitters Unit
Boris FX: Glitters