Most of these are models based on conflicts between socialogical forces ie. ideas and classes. In some cases eg. Brin's "memes" it seems possible to separate the ideas from the people. In more traditionally "Marxist" models the ideas must be embedded in the economic reality of actual groups.
Remember, these models are in co-opetition. They may be rivals, offering different explanations and predictions. Or they may occasionally supplement each other.
Here's the list :
Contrast non-social logics.
There are now several wikis about the future :