DOI Impact on End Users

Handle System Workshop

17 June 2008

Brussels, Belgium

Ed Pentz

• Gateway to the DOI world for scholarly publishers

• Develops and maintains the Handle System

The Pyramid

…and more !!

CERN

•Develops and maintains the DOI System built on the Handle System

Lots of PublishersMembership Growth

0

100

200

300

400

500

600

Jan-0

2

May-0

2

Sep-0

2

Jan-0

3

May-0

3

Sep-0

3

Jan-0

4

May-0

4

Sep-0

4

Jan-0

5

May-0

5

Sep-0

5

Jan-0

6

May-0

6

Sep-0

6

Jan-0

7

May-0

7

Sep-0

7

Jan-0

8

Month

Content GrowthTotal Number of CrossRef DOIs

0

5,000,000

10,000,000

15,000,000

20,000,000

25,000,000

30,000,000

35,000,000

Month

4 Centuries of Citation•The oldest content

registered in CrossRef thus far dates from 1665…Philosophical Transactions

•Chain reaction effect with digitization is driven by linkability of older content

1600s

1,674

1700s

4,436

1800s

381,187

1900s

15,750,357

21st C

8,031,503

Traffic to content

DOI Clicks

0

5,000,000

10,000,000

15,000,000

20,000,000

25,000,000

Month

- Citation export tools for the researcher- The DOI as a standard component Of bibliographic metadata

Blogs

Wikis

Science Blogs

Tools

http://dx.doi.org/10.1038/nphoton.2008.100

Don’t forget the users