Organic is still available, for entry level-mid range performance level but not suitable for high performance. My previous pads, the Project Mu 400c, was organic type.
Ceramic can also be available for high performance ones, not just entry level. For example Endless CCR type is for high performance, then you also got Bendix CT or Advics OEM ceramic pads which is for entry-mid level. I never used this type yet but based on what I read it's supposed to be very low dust and quiet, but cold bite might not be as good.
Semi metallic can be from std level performance to high performance pads but more dusty and supposedly more noise. For example are the Bendix MKT and my current Project Mu 500c.
This is a video about brake pads types.
[youtube]r2gfVnTXQ60[/youtube]