The MUFON logo (credit: MUFON)

National UFO Reporting Center logo (credit: NUFORC.org)
There are several small groups that take UFO sighting reports from the public, but the National UFO Reporting Center and MUFON are the two main United States organizations that do this. MUFON is a much larger organization that investigates UFO sighting reports, and tracking data is something the organization does well. The National UFO Reporting Center, operated by Peter Davenport, is specifically a hotline for reporting UFO sightings.
LiveScience published an infographic today on their website showing the top ten states for UFO sightings. The National UFO Reporting Center’s data was used to create the infographic, and the data represents sightings from 1994-2011.

(credit: R. Toro / LiveScience)