Discovering and Managing Older Online Documents: The University of Denver Experience 
By Christopher C. Brown
University of Denver
Statement of the Problem
Records for older docs in our catalogs
How we added over 15,000 URLs
* Pattern Matching
* Link-Checking Software
* Foraging for Docs
* Hidden Internet Mining
* Aggregator Content

Pattern Matching: ERIC Digests
* ERIC Digests
Pattern Matching: ICASE
Pattern Matching: Legislative Histories
Pattern Matching: Legislative Histories
Pattern Matching: Legislative Histories
Pattern Matching: Selected Projects1
Pattern Matching: Selected Projects2
Link-Checking Software
Link- Checking Software: 1997 Economic Census
Link-Checking Software
Foraging for Docs: Surgeon General's Reports: Smoking and Health
Foraging for Docs: Papers relating to the foreign relations of the United States 
Foraging for Docs: NASA History Site
http://history.nasa.gov/ 
Foraging for Docs: NASA History Site
Makes a Corsortial Contribution
Hidden Internet Mining
Hidden Internet / Deep Web:

* Not accessible to search engines
* Often rich in content
* Est. size: 500x "surface Web"
Hidden Internet Mining
Examples of mining places:
* NEPIS  http://www.epa.gov/nepis/
* NCJRS  http://www.ncjrs.org/
* DOE Information Bridge  http://www.osti.gov/bridge/
* Numerous Others
Hidden Internet Mining
* NEPIS
Hidden Internet Mining
* NCJRS
Partnering with Journal Aggregators
Partnering with Journal Aggregators
Partnering with Journal Aggregators
Benefits to Other Libraries
Summary
* We can enhance our OPACs by aggressively adding URLs to older government documents
* Other libraries in our consortia can benefit by our efforts