--- "Isidro F. Aguillo" wrote:

Date: Mon, 26 May 2008 15:17:43 +0200 From: "Isidro F. Aguillo" Subject: New Beta version of the Ranking Web of World Repositories To:

AMERICAN-SCIENTIST-OPEN-ACCESS-FORUM@LISTSERVER.SIGMAXI.ORG

We have taken into account some of the suggestions regarding the Ranking Web of World Repositories for the new Beta 2 version. We have changed the domain that it is now autonomous from the Universities Ranking one:

http://repositories.webometrics.info/

This will allow to be more flexible in the future and to enlarge and diversify the coverage. Now we are ranking the Top 300 instead the first 200 as in the previous edition. New repositories have been added, like PubMedCentral that was missed and others have been deleted because they are not focused on research papers.

The most important changes are related to ranking methodology: For the Rich files ranking we are considering only Adobe Acrobat pdf files, as other formats numbers were very low for ranking purposes. For the same reason, only data extracted from Google and Yahoo were considered. Regarding Scholar ranking, it is now build from the mean between the total number of items and those published between 2001 and 2008 to increase the weight of the "freshness".

Finally we are suggesting the use of Google Analytics as common minimum standards for obtaining usage data, clearly the weakest point of our current approach.

Comments are welcomed as usual,

-- **************************** Isidro F. Aguillo Laboratorio de Cibermetría Cybermetrics Lab CCHS - CSIC Joaquin Costa, 22 28002 Madrid. Spain

isidro @ cindoc.csic.es +34-91-5635482 ext 313 ****************************

__________________________________________________________ Sent from Yahoo! Mail. A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.