The 2009 Journal Citation Reports® (available in June 2010) will contain a full report of citation metrics for PLoS ONE, including Journal Impact Factor, 5-year ...
This study provides a systematic analysis of significant journal Impact Factor changes, based on the relative contribution of either one or both variables of ...
Journal Impact and Article Metrics. PLOS does not consider Impact Factor to be a reliable or useful metric to assess the performance of individual articles. Why Researchers Choose... · Scope · Peer Review at PLOS ONE · Journal Timings
That was a good question in that Plos One does not include its Impact Factor on its website. I strongly suggest that you create a free account in Web of Science ...