Just making a discussion thread where information on LIDAR repositories can be found online. One quite beneficial one when trying to determine if there is LIDAR coverage of an area is the NOAA hosted United State Interagency Elevation Inventory.
United States Interagency Elevation Inventory
This resources shows where known LIDAR has been flown, who manages the data, information about the data accuracy, and contact information or links for download of the LIDAR data.
If you know of other good resources for LIDAR data, please feel free to add to this discussion.