1. information=knowledge representation
2. Concepts
2.1. what is knowledge
2.1.1. personal knowledge
2.1.2. crowd wisdom
2.1.2.1. Citizen science
2.1.3. group knowledge
2.1.4. collective intelligence
2.1.4.1. distributed cognition
2.1.4.2. learning community
2.1.4.3. Co-creation of knowledge
2.1.5. non-human knowledge
2.1.5.1. learning algorithms
2.1.5.2. bigdata analysis
2.1.6. actionable knowledge
2.1.6.1. know what
2.1.6.2. know how
2.1.6.3. informal knowledge
2.1.6.4. tacit knowledge
2.1.7. DIKW
2.1.7.1. Wisdom
2.1.7.1.1. literacy
2.1.8. types of knowledge
2.1.8.1. interdisciplinary knowledge
2.1.8.2. domain knowledge
2.1.8.2.1. design knowledge
2.1.8.2.2. scientific knowledge
2.2. information society
2.2.1. digital divide
2.3. information overload
2.4. Information/knowledge consumption/acquisition
2.4.1. Sharing
2.4.2. Trading
2.4.3. Access Management and Gatekeeping
2.4.4. Generating
2.4.4.1. the world of learning
2.5. Value of information
2.6. Information processing and knowledge building
2.6.1. knowledge organization
2.6.2. knowledge integration
2.6.3. personal information management
2.6.4. self-regulated learning
2.6.5. interpretation
2.6.6. situated learning
3. Future direction
3.1. Philosophy of information
3.1.1. Epistemology