"The Cross List Web Part consolidates and presents data associated to a Sharepoint List through Lookup columns. Lookup columns allow you to use information from a column in a second list as drop-down values for the lookup column in the parent list. The Cross List Web Part uses this association to allow you to pick not just the lookup column data, but any column data from the parent list and up to two lookup lists for presentation in a single list view. You can sort the data to target relevant information for your team as well as create a printer friendly view of the list for on-the-spot reporting or analysis.
The Cross List Web Part allows you to choose just the information you need and display the consolidated data into one "joined" view."
Pricing: (Feb 2007)
Standard Support: $60 / year
Premium Support: $150 / year