Via Reuters: High-speed trader Infinium Capital Management, which has struggled financially, has stopped trading and is working to wind down the company, President Mark Palchak told Reuters on Thursday. The closure of Chicago-based Infinium reflects pressures on high-speed trading firms stemming from increased competition and regulatory oversight, low interest rates that have hurt volume and volatility, and the uncertain global economic recovery. Currency broker FXCM Inc and a subsidiary have acquired five trading desks, physical assets and 48 employees from Infinium to start a new joint venture, V3 Markets, Palchak and FXCM said.

As is a tale, so is life: not how long it is, but how good it is, is what matters. - J K Rowling

If one tries to read some historical developments behind Brownian motion, there is no dearth of material on the web. There are also entire books written that trace the events that lead to Brownian motion and how it was used in various domains. However for the Poisson process, there is a paucity of literature that traces the history. I stumbled on to a note by David Strirzaker that recounts the history behind Poisson processes.

Via Maya R. Gupta A summary of bare minimum measure theory stuff one must know, to get going on probability applications.