Leftist organizations/parties in Turkey

[pluckedflowers]

I was wondering if anyone could give me a short breakdown of the largest/most active leftist groups in Turkey. I can find information about individual groups, but it's hard to get a sense of just how significant they are and how united or not the left is in Turkey. Editorializing is welcome, too.

[CHE with an AK]

The party with the most revolutionary potential in my view would be the P.K.K. (Kurdistan Worker's Party) - although they understandably want their own state apart from Turkey, considering the quasi-apartheid and oppression that Turkey's Kurdish population faces.

[Q]

Turkey is littered with groups and grouplets. I'm sure either Leo or Devrim could give a general picture.