In today's world we use a number of "tools" to create and maintain
 relationships: 
 
 
   - value added services
       - information seeking and filtering (NYT, CNN)
 
- assertion systems that are verifiable or even legally binding
       - actionable policies (2 out of 3 bank officer signatures required for loans > 50K)
- price lists (LL Bean catalog)
- contractual agreements (employment contract)
 
- relationship and trust management systems
       - reputation and brand creation (seal of approval)
- trusted third parties (letters of credit)