Chris Freeland tweeted about the presentation he gave to a recent BHL meeting, the slides for which are reproduced below: BHL Tech Report View more presentations from chrisfreeland.It makes interesting viewing. From my own (highly biased) perspective slide 10 is especially interesting, in that BioStor, my tool for locating articles in BHL is the 8th largest source of traffic for BHL - 2.46% of visitors to BHL come via BioStor.