A Taxonomy of Visualization Techniques
CowboyRobot writes "The ACM's Queue magazine has a new, comprehensive taxonomy of visualization techniques, drawing from the theories of Edward Tufte and citing examples from academia, government, and the excellent NYT visualization team. This list contains 12 steps for turning data into a compelling visualization: Visualize, Filter, Sort, Derive, Select, Navigate, Coordinate, Organize, Record, Annotate, Share, & Guide. 'For developers, the taxonomy can function as a checklist of elements to consider when creating new analysis tools.' The citations alone make this an article worth bookmarking."
Many Eyes by IBM offers 21 types of visualizations
What one fool can do, another can. (Ancient Simian Proverb)
A Tour through the Visualization Zoo
It seems to be more complete and more oriented to concepts instead of website examples. But may be a personal preference.
A long time ago it was published at http://www.visual-literacy.org/periodic_table/periodic_table.html and I find it quite useful to select the most appropriate to do a quick choice