Paul Stainthorp at Lincoln University (in the British Isles) has quantified the real-world electronic journal usage he’s seeing at the library…
“12% of all our usage — one eighth — derives from journals which we don’t pay for. Most of this is from journals listed in the EBSCO Open Access Journals package.”
He’s put together a handy pie chart…
According to EBSCO, this is a package of “nearly 2,000” open access titles, including science, medicine, politics, business, etc.