Objective research and reviews to aid investing decisions
Has disintermediation of trading, enabled by the Internet, changed the level of risk that individual investors/traders routinely assume? In his 2005 paper entitled "Where the Action is: Internet Stock Trading as Edgework", Detlev Zwick argues that the transition of stock trading from pre-Internet communication modes (telephone, fax and in-person) to the computer screen creates new types of individual experiences and practices that existing economic and finance theories do not predict or understand. Using in-depth oral interviews extended by email follow-ups with 25 experienced online investors in Germany, Denmark, and the United States during 2000-2002, he concludes that:
The following figure is a snapshot from 9/4/07 of the Map of the Market, which the author cites as a perfect example of a visual tool that gives investors/traders a sense of control and authority. It invites a reassuring perception of the rationality and the wholeness of a complex system that encompasses frantic trading, turbulent money flows and numerous remote places of production and consumption. Such visualizations give the market a familiar if abstract face that encourages users to develop a direct and active relationship. In contrast, mediation by banks, investment advisors and fund managers tends to make investors/traders feel alienated or at least distant from the market.

In summary, game-like trading-enabled visual abstractions of the stock market may encourage individuals to see the market as amusement and treat trading like "edgework," wherein experiencing anticipated risk becomes an end in itself. (Perhaps some individuals should set up a separate, relatively small, edgework account for amusement.)
This analysis could explain the popularity of Jim Cramer's Mad Money on CNBC. It defies the pejorative reference to financial markets as roller coasters.
Could growth in edgework trading create anomalies for non-edgeworkers to exploit?
For related research, see Blog Synthesis: Animal Spirits Round-up.