Here is my latest list. Look it over.
New Civic Ideas
Government:
Despotism
Low Upkeep
-1 happiness in largest cites
+25% distance maintenance (“Power corrupts. Absolute power corrupts absolutely”

<Anarchy Length 2> (Who want’s to do back to despotism?)
Hereditary Rule
Monarchy
High Upkeep
+1 happiness per military unit in city
+25% commerce in capital
Oligarchy
Currency
Low Upkeep
-25% City distance maintenance (A step up from despotism)
+25% City number maintenance (The elite clash for the highest position)
Representation
Constitution
Low Upkeep
+3 science per specialist
+3 happiness in 6 largest cities
Police State
Fascism
High Upkeep
+50% military unit production
+2 experience to new units
+2 happiness per military unit in city (Secret police keeps order)
-50% war wariness
<Anarchy Length 2>
Universal Suffrage
Democracy
Medium Upkeep
+1 hammers and commerce from towns
Doubles growth of Cottages, Hamlets, and Villages
Organization:
Village
Low Upkeep
City State
Polytheism
Low Upkeep
Can draft 1 unit per turn?
-25% city maintenance costs (Cities take care of themselves)
-25% culture per city (To slow border growth so cities are more isolated)
Imperial
Monarchy
Low Upkeep
+10% production in capital
+2 happiness from palace
-1 happiness in largest 6 cities
Vassalage
Feudalism
High Upkeep
+2 experience to new units
Free units <+6 base, +20% pop>
Federal
Paper
Medium Upkeep
+2 happiness in largest cities
-25% city maintenance costs
Nationhood
Nationalism
Low Upkeep
Can draft 3 unit per turn
+2 happiness from barracks
+1 culture from specialists
-1 happiness per 25% foreign nationality (xenophobia, anyone?)
Legal:
Barbarianism
Low Upkeep
-1 happiness in largest 6 cities (“Under barbarism, the strong take what they want from the weak”

<Anarchy Length 2> (Who would volunteer to go back to this civic?)
Decree
Writing
Low Upkeep
+25% culture
+1 happiness from palace
Bureaucracy
Civil Service
High Upkeep (Bureaucracy becomes corrupt and inefficient over time)
+60% hammers in capital
+60% commerce in capital
Jurisprudence
Constitution
Medium Upkeep
+25% culture
+10% science
+1 happiness from courthouses and jails
Freedom of Speech
Liberalism
Low Upkeep
+100% culture
+ 50% Great People birth rate (The government does not suppress ideas)
+ 50% war wariness (There would not have been protests during the Vietnam War if the public had not seen all of those nasty war images)
Labor:
Tribalism
Low Upkeep
Slavery
Bronze Working
Low Upkeep
Can sacrifice population to rush production <2 unhappiness per pop rush>
+1 hammer for quarries (Where slaves commonly worked)
+1 commerce for plantations (Where slaves commonly worked)
<Anarchy Length 2>
Serfdom
Feudalism
Low Upkeep
Works build improvements 50% faster
+1 commerce from farms (feudal lords squeeze out every penny from their serfs)
-50% growth of Cottages, Hamlets, and Villages (urbanization isn't encouraged)
-1 happiness from castle
<On a side note, a modder should also make the castle slighly better>
Caste System
Code of Law
Medium Upkeep
Unlimited artists, scientists, and merchants in cities
Emancipation
Democracy
Low Upkeep
May spend gold to finish production
Gives Civs without Emancipation unhappiness <400>
Economy
Decentralization
Low Upkeep
Mercantilism
Banking
High Upkeep
No foreign trade routes
-50% distance maintenance (Many European colonial empires ran mercantilism, so this seemed a better place for the bonus)
+25% commerce from markets, grocers
+1 commerce per specialist
Natural Monopoly
Economics
Low Upkeep
+2 trade routes (Many business incentives)
+20% production and -1 happiness from forge, factory (Factories are worked overtime to increase production- and profit)
-6 health (Industrialists do not care about the environment. They see it as something to be used and abused)
-15% commerce (The corporation takes more for themselves)
Regulated Market
Industrialism
Medium Upkeep
+1 trade route per city (Some business incentives)
+10% production from forge, factory
+1 commerce, production, and science per specialist (Some government investments)
+3 Health
State Property
Communism
Low Upkeep
+1 Free Specialist (Investments can be directed to specific ends)
+1 Food from watermills, workshops
-25% Commerce trade yield (Individual initiatives are not encouraged)
-(1 or 2) Trade Routes (Individual initiatives are not encouraged)
Environmentalism
Ecology
High Upkeep
+6 health in all cities
+25% production from recycling plant (Nation recycles as much as possible)
+1 happiness per extra health (Citizens pride themselves in keeping the environment clean. In game terms, there is now a logical reason for all of the extra health)
+1 food from all tiles already producing food <if not possible, +1 food from farms and watermills> (Hydroponics offer larger yields)
Religion
Paganism
Low Upkeep
Organized Religion
Monotheism
High Upkeep
Can build missionaries without a monastery
Cities with State Religion construct buildings +25% faster
+1 extra happiness in cites with state religion
Theocracy
Theology
Medium Upkeep
Halts the spread of non-state religions
+2 exp in cities with state religion
+10% military production with state religion (Easier to recruit a Holy Army)
-1 happiness per non-state religion (Self-explanatory)
<Anarchy Length 2>
Pacifism
Philosophy
No Upkeep
+100% Great People points in cities with state religion
+1 gold per military unit
+100% war wariness (Self-explanatory)
Less free military units <-5 base, -25% pop>(Increased military costs have more effect)
Freedom of Religion
Liberalism
Low Upkeep
No state religion
+1 happiness for every non-state religion in a city
+25% science
-10% culture (The “Morally lax” society described in the Civilopedia)
Credit to Armandeus, Aussie Lurker, Holistic, korn469, JBG, Dubmetender, TheJopa, and Dryhad
for their ideas.