How do I get rid of my dictator?

Better to read Erica Chenoweth and Maria Stephan’s book, but this is an excellent intro to the effectiveness of civil resistance:

I know it’s hard to maintain nonviolent discipline, and all too often it proves beyond the capabilities of those who want to get rid of dictators.  But the fact is that nonviolent civil resistance does work better and more often no matter how repressive the dictator, as Maria and Erica show with hard data.

Once you are convinced, these are some of the folks who teach how it’s done.