The handbook focuses on solving the information problem and discusses concrete approaches and sources for information retrieval. The topics reflect the most common questions arising from research practice. Although the World Wide Web is often portrayed as a universal source for information seekers, information professionals utilize a wide range of sources that extend far beyond the internet. This handbook presents a broad spectrum of resources. In addition to relevant websites, readers gain insight into various online databases, CD-ROM products, reference works, and other information sources, supplemented by tips and tricks from professionals. The practical handbook serves as a solid introduction and reference work. For the new edition, the text has been expanded and the detailed source list has been completely updated.