Sunday, July 02, 2006

Dramatic Growth of Open Access June 2006

My June 2006 Dramatic Growth of Open Access Update is now available.


The Dramatic Growth of Open Access continues in the second quarter of 2006, although at a somewhat less hectic pace than the first quarter. Since I've only started noting growth on a quarterly basis beginning last December, it is possible that this reflects seasonable variation, i.e. two months of this period fall within the summer semester in the northern hemisphere, a slower time at academia in general.

Growth continued very strong in both the gold and green roads. DOAJ, today at 2,292 journals, added 134 journal titles, an increase of about 1 and 1/2 titles per day (calendar days, not business days), about an equivalent of a 25% annual increase. More than half a million items were added to an OAIster search, for a total of more than 7.6 million items, or about the equivalent of a 24% annual increase. At the current rate of growth, an OAIster search can be anticipated to encompass more than a billion items before the end of 2007.

The most significant change was a drop in the % increase to Highwire Free Press Online, from an 18% increase in the first quarter to a less than 1% increase in this quarter. It is too soon to draw any conclusions from this change, which could reflect Highwire procedural timing.

Stevan Harnad comments that a missing element is the excellent data available from ROAR, the Registry of Open Access Repositories. An excellent point, and something I'm meaning to add.

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