My notes while reading the book Smart Mobs.  Rheingold's most focused work yet.  Found a PowerPoint summary on web.

Chap 0: intro

Chap 1: Thumb tribe.

1. teens embrace i-mode text messaging because it gave them private meeting space (apart from the watchful eyes of parents)
2. i-presence bridges the physical presence gap:  ok to be late or absent if you are in contact via texting (NB. implication to church making use of emails and forums to keep people feel the link.)
3. p16. mobile phone creates its own new culture: text messaging as sharing the moment.
4. p18. mobile phone game: city as the game grid.
5. p22. Euro and Asian adoption of SMS is due to lower charge for texting than regular call.  This is opposite in the US.  Furthermore, private space is ample in the US - personal room, kitchen, car, PC and internet for everyone, and more than one landline phone, etc, all lacking in the Asian and Euro societies.
6. p22: the only texting behavior in US: 2-way pager, and Blackberry
   

Chap2: Tech of Cooperation

• why collaborative activities among strangers?  social network capital, knowledge capital: each person puts a little in, and everyone can draw larger amount of knowledge and opportunity
• competition between collective action/public good and private interest
• cooperation, public goods, presentation of self, and reputation all connected.
• Whenever a communication medium lowers the costs of solving collective action dilemmas, it becomes possible for "more people to pool resources in new ways"
• Problem of free riders in depletable public goods: the tragedy of the Commons
• Hobbes think that sovereign centralized regulartion is needed.  Locke believes that social contracts can replace coercive authority.
• Social experiments: small groups are more likely to cooperate, or when games are repeated with the same people, communication among participants.  Personal reputation is at stake here.
• Groups that organize share the following features: 1. group boundaries are defined.  2. rules for collective goods are sensible to the needs. 3. participants can modify rules.  4. the right to 3 is respected. 5. self-monitoring exist.  6. access to low-cost conflict resolution mechanism.
• identity, reputation, incentive to contribute, deterence of free riders
• p38. people are continent cooperators, willing to cooperate when most others do.
• cooperation: self interest vs collective action, social strategy, prisoner's dilemma
• iterative prisoner's dilemma: how collaboration rise without central authority.  a core cooperative group will win more points than non-cooperative outsiders.  reputation is built up.  Presence of an external enemy will enhance such a group by clarifying the group boundary, of who belongs and who don't.

• person (not group, place, work) will become the communication node
• they maintain their community via phoning, writing, driving, transiting, ...
• person is the portal
• Metcalfe's law: growth of value in networks: number of connections between nodes grown as N^2.
• Reed's Law: ex: eBay form social groups around specific interests. Group-forming networks:value of the network grows as exp(N): 2^N number of subgroups.

• When network is used to broadcast something of value to individuals, like a TV network, the value of the service is linear.  (Content is king).
  
• When the network is for transactions between individuals, value is N squared. (Email, voice mail, match making.)
  
• When the network includes ways for individuals to form groups, the value is exponential.

• www.epinions.com
• www.askme.com
• www.experts-exchange.com
• www.allexperts.com
• www.expertcentral.com
• www.abuzz.com

• persistent identity
• feedback available inpublic
• people must pay attention to the feedback rating ( surveillence, punishment of cheaters)

• Lovegety keychain
• i-mode to alert buddies in the vicinity now
• mobile communities: broadcast text messages from all other members (egroup for SMS)
• P2P journalism: multimedia egroup (P2P meets Face 2 Face)
• social middleware for wearble computer users: communities, reputation, privacy, knowledge sharing agents.
• Auranet (p171)  broadcast one's interest and attributes to one's physical neighborhood via BlueTooth (future implementation could be active RFID)

• whole auditorium of people converge in guiding something. 
• Flocks with no central control, but only neighbor interaction
• similar to musicians "jam": synchronization of brain processes
• NB: could all these be another aspect of Huygen's synchronization phenomenon?

• absence of cnetralized control
• autonomous nature of subunits
• high connectivity between subunits
• nonlinear causality (positive feedback) of peer influence

• computers start to communicate
• word processing and virtual communities, eBay and e-commerce, Google and weblog and reputation systems emerged.
• mibile computing, sensor communicating, location awareness, portable and wearble