JISC has released DISC-UK DataShare: Web 2.0 Data Visualisation Tools: Part 1—Numeric Data.
Here's an excerpt from the "Introduction":
Part 1 of this briefing paper will highlight some examples of new collaborative web services using Web 2.0 technologies which venture into the numeric data visualisation arena. These mashups allow researchers to upload and analyse their own data in ‘open’ and dynamic environments. Broadly speaking the numeric data being referred to could be micro-data (data about the individual), macro-data2 or country-level data, derived or summary data.