I've just finished reading some extremely informative articles about the astrology of generations. They're about how the combination of Pluto, Neptune and Uranus affect generations. Looking into this stuff also helps put natal personal/outer-planet contacts into perspective because what really what it's doing is making you a vessel for the collective purpose of your generation.
The following article: Generation Gap - by Liz Green
, was highly fascinating and in depth and I highly recommend it to anyone interested in the astrology of generations. It also goes into how family trees act like an entity that fills in missing elements of itself through generations among other things.
Also the Wandering Star - Astrology by Generation
gives brief descriptions of each Pluto/Neptune/Uranus combination generations which I thought was quaint but also pretty cool. I apparently come from the "The benevolent entrepreneurs" generation which does make sense when I think about it.