Digital libraries (DLs) have introduced new technologies, as well as leveraging, enhancing, and integrating related technologies, since the early 1990s. These efforts have been enriched through a formal approach, e.g., the 5S (Societies, Scenarios, Spaces, Structures, Streams) framework, which is discussed in two earlier volumes in this series. This volume should help advance work not only in DLs, but also in the WWW and other information systems. Drawing upon four (Kozievitch, Murthy, Park, Yang) completed and three (Elsherbiny, Farag, Srinivasan) in-process dissertations, as well as the efforts of collaborating researchers and scores of related publications, presentations, tutorials, and reports, this book should advance the DL field with regard to at least six key technologies. By integrating surveys of the state-of-the-art, new research, connections with formalization, case studies, and exercises/projects, this book can serve as a computing or information science textbook. It can support studies in cyber-security, document management, hypertext/hypermedia, IR, knowledge management, LIS, multimedia, and machine learning. Chapter 1, with a case study on fingerprint collections, focuses on complex (composite, compound) objects, connecting DL and related work on buckets, DCC, and OAI-ORE. Chapter 2, discussing annotations, as in hypertext/hypermedia, emphasizes parts of documents, including images as well as text, managing superimposed information. The SuperIDR system, and prototype efforts with Flickr, should motivate further development and standardization related to annotation, which would benefit all DL and WWW users. Chapter 3, on ontologies, explains how they help with browsing, query expansion, focused crawling, and classification. This chapter connects DLs with the Semantic Web, and uses CTRnet as an example. Chapter 4, on (hierarchical) classification, leverages LIS theory, as well as machine learning, and is important for DLs as well as the WWW. Chapter 5, on extraction from text, covers document segmentation, as well as how to construct a database from heterogeneous collections of references (from ETDs); i.e., converting strings to canonical forms. Chapter 6 surveys the security approaches used in information systems, and explains how those approaches can apply to digital libraries which are not fully open. Given this rich content, those interested in DLs will be able to find solutions to key problems, using the right technologies and methods. We hope this book will help show how formal approaches can enhance the development of suitable technologies and how they can be better integrated with DLs and other information systems.

America and baseball are rediscovering the game played by African Americans before Jackie Robinson broke the color barrier in 1947. We now know a great deal about the Negro Leagues of 1920 on, and their great stars-Satchel Paige, Josh Gibson, and their contemporaries. But what of the pre-1920 black game? From the onset in the 1880s of the "gentleman's agreement" that barred blacks from playing in white leagues, that game is nearly invisible. Financially shaky, with sporadic media coverage even in black newspapers and completely overlooked by the mainstream, Negro teams of this era played on for love of the game and in hopes that their skills would receive their due. In 1907, Sol White, a remarkable African-American ballplayer, successful manager, and baseball loyalist, wrote a small volume on the history of the black game. Part fund-raising effort, advertising brochure, team hype, celebration of black baseball, and throughout an implicit and explicit challenge to racism, Sol White's History of Colored Base Ball is the source of much of what we know of the events in the organized black game of that time. The original was poorly printed, and copies are exceedingly rare (known and rumored copies number only four). This edition republishes the full 1907 edition (with the even rarer supplement), completely reset for legibility, and reproduces all the original's illustrations, including the advertisements that speak volumes on the social world of the day. Fifteen additional documents from 1886 to 1936 augment the picture of the black game and our record of Sol White himself. The work is introduced by Jerry Malloy, a recognized expert on the history of Negro leagues who has spent years inpainstaking research into this vanished world.