The GBNCC survey is the latest in a long history of successful Green Bank Telescope pulsar surveys. To date we have discovered 55 pulsars, including nine millisecond pulsars—and this is just in preliminary investigation of the best candidates! There is almost certainly more pulsars waiting to be uncovered by a more detailed analysis (which is now beginning). Furthermore, data-taking and processing are ongoing. Forty-two of these pulsars (including four MSPs) were discovered at McGill University (21 by myself and 21 by a pair of high school summer students working with myself and Prof. Vicky Kaspi during July 2012).
The first stage of the survey covered all declinations north of 38 degrees (i.e., the Green Bank "north celestial cap") and we are moving to lower declinations with the ultimate goal of covering the entire sky visible to the GBT. When this visible-sky survey is done, we will have amassed over 360 TB of data and used over 2000 hours of telescope time. We've managed to process data at a fast pace thanks in large part to the Guillimin supercomputer, operated by CLUMEQ, which has 2048 cores dedicated to GBNCC data processing (we've been struggling to transport data quickly enough to fully utilize these resources!). We are observing at a center frequency of 350 MHz with 100 MHz of bandwidth using a dwell-time of 120 seconds, so the survey is optimized for finding bright, low-DM, steep-spectrum sources. So far it has been very successful.
I manage the data processing on Guillimin and have been examining many candidate pulsars. I've also developed a number of candidate ratings that are designed to identify real pulsars and discriminate against radio frequency interference and noise. UPDATE: GBNCC candidates can now be viewed using the Cyber SKA web interface originally developed for the PALFA survey. This will allow us to take full advantage of the ratings and other diagnostic tools, which will hopefully allow us to find many more pulsars. There are a few potentially interesting MSPs that I'm also following up. UPDATE: Observing proposals for long-term timing of all GBNCC pulsars (and a few stragglers from the Drift Scan survey) have been accepted for both the GBT and LOFAR! The GBNCC processing pipeline and the database tools used by Cyber SKA were developed by Kevin Stovall, who has been one of the driving forces behind survey processing and discovery follow-up (the 13 pulsars not discovered at McGill were mostly found by Kevin and his students at the ). Kevin is working on a paper detailing the survey and presenting some of the early discoveries. Chris Pankow at the University of Wisconsin-Milwaukee is also working on getting survey processing up-and-running on one of their computing clusters.