Someone build this: a marketplace where people build their brands.
Think Experts-Exchange meets eLance/oDesk
Professionals build networks, blog, offer free goods and services, and premium products/services, get reviews, give recommendations.
Bring in lots of small-scale projects. Focus on crowd-sourcing and use of big data.
Introduce profit sharing into the community. I.e. everyone shares in the success based on involvement/contribution. Need to be vetted by minimum number of peers to benefit.