Visualization in the finance sector is nothing new, but the extent of it is somewhat shrouded in secrecy.  Each trader has their own secrets and tools, and are somewhat reluctant to share it with others.  Andrew Hart over at Seeking Alpha has a roundup of 5 such tools that track finance and stock data with everything from basic line and bar charts to more complex heatmap visualizations.

Top 5 Options Tools [Free] – Andrew Hart — Seeking Alpha.