LexisNexis™ Statistical DataSets is a new online service that enables researchers to build statistical tables and charts from multiple sources in a single interface. This online interactive statistical solution aggregates over 610 licensed and public domain datasets provided by over 55 sources. The DataSets product makes 16.0 billion data points accessible within a single interface. The product exists as a module within LexisNexis Statistical Insight, which up until has covered published statistical tables. Now LexisNexis Statistical brings together the two worlds of published statistics and unpublished numeric data
Swivel is a website where people share reports of charts and numbers. Swivel is free for public data, and charges a monthly fee to people who want to use it in private.
Quarkbase is a free tool to find complete information about a website. It is a mashup of over 30 data sources and many algorithms gathering information from Internet on various topics like social popularity, traffic, associated people, etc. e.g. http://www.quarkbase.com/show/microbiologybytes.com