James Dooley from the University of California, Merced presented on the library's experience with patron-driven acquisition (PDA) of e-books. Some key points: - PDA through EBL and MyiLibrary has allowed the library to provide access to 150,000 e-book titles while only purchasing 22,000 titles that were accessed more than 100 times, representing good value. - Expenditures have been predictable, averaging $2,640/month for EBL and $750/month for MyiLibrary. - The library is exploring linking the PDA program to its approval plan to reduce duplication and considering using print PDA as some other UC libraries are doing.

1. James Dooley
University of
California, Merced
2011 Charleston Conference

2. • Opened in 2005
• 5,200 students

3. Collection Collection Budget
Electronic Other Electronic Other
10%
20%
80%
90%

4. Physical Virtual

5. Patron UC Systemwide
Subscription
Selection Plans Packages
EBL Full Catalog
• 3 short term loans ebrary Academic Springer
• Purchase on 4th access Complete Wiley
MyiLibrary
• Limited by publisher
• Purchase on 2nd access

6. • The Long Tail
EBL Springer
(22,000 purchased)
Visible Titles (150,000)
Browsed Titles (6,000) Not accessed
Accessed more than 100 times
Accessed less than 100 times
4%
19%
8%
73%
96%

7. Collection Balance
• Has not led to unbalanced collection
Predictability
• Expenditures have been predictable
Value
• Expenditures represent good value

8. EBL MyiLibrary
Average 154
transactions/month
Average 4 Average 6
purchases/month purchases/month
Average 9 transactions
of non-academic
content/month

9. EBL
• Expenditures $1600 to $3900 per month
• Average $2,640/month
MyiLibrary
• Expenditures $275 to $1800 per month
• Average $750/month

10. EBL
• Short term loan average price = $15.00
• Purchased title average price = $85.30
MyiLibrary
• Purchased title average price = $121.50

11. UC Merced UC System
PDA remains exclusive way to acquire e-
Some campus e-book PDA pilots
books
Exploring linking to approval plan to
UCLA using print PDA
reduce duplication
Systemwide e-book PDA pilot under
Possible use of print PDA
discussion

12.  Shared print
 HathiTrust
▪ Digitized volumes ingested = 9.7 million
▪ Digitized public domain volumes = 2.6 million
 WEST (Western Regional Storage Trust)
▪ Distributed retrospective print journal repository