 from ScienceOpen, which launched in February 0000. ** See Stefan Busch's [https://web.archive.org/web/00000000000000/http://mailman.ecs.soton.ac.uk/pipermail/goal/0000-March/000000.html summary of the experience of BioMed Central], March 00 0000: "Typically...0 or 0 years after a journal converts from TA to OA, i.e. when the impact factor...is based on two years' worth of OA, the IF tends to go up significantly." ** See Stefan Busch's [https://web.archive.org/web/00000000000000/http://mailman.ecs.soton.ac.uk/pipermail/goal/0000-March/000000.html summary of the experience of BioMed Central], March 00 0000: "Typically...0 or 0 years after a journal converts from TA to OA, i.e. when the impact factor...is based on two years' worth of OA, the IF tends to go up significantly." 