How has the rise of digital publishing impacted the processes of indexing and abstracting periodicals?

Digital publishing has greatly increased the speed and accessibility of information, but also increased the volume to be indexed. It has led to the development of automated indexing techniques, the use of XML and other metadata formats, and the integration of indexing and abstracting with online search engines and databases. Digital publishing has also enabled new search functionalities, such as full-text searching and semantic indexing.