In 2008, we started by pulling a sample of 483 public libraries from across the country, using 2007 public library annual report data. Because small libraries have different needs and resources than larger libraries, we stratified the sample to make comparisons by size, according to the following population groups: fewer than 10,000 served;…

This research examined teachers' online behaviors while using a digital library service--the Instructional Architect (IA)--through three consecutive studies. In the first two studies, a statistical model called latent class analysis (LCA) was applied to cluster different groups of IA teachers according to their diverse online behaviors. The third…