With more appropriate linkage of digital libraries to Web resources, online-browsing of research papers would be much comfortable since many digital libraries of research papers are online and accessible from the Web. This paper proposes a browsing support system for reading research papers online with the use of OCRed text of scanned academic articles. Our digital library stores scanned document images of research papers; hence, their OCRed texts can be cheaply obtained. The proposed system extracts technical terms from the OCRed text, searches the Web for the best explanatory descriptions of the terms, and gives the terms the links to the retrieved Web pages. This paper also describes an experimental exploration of several aspects of the proposed system, including the extraction accuracy of technical terms and the precision of retrieved Web pages.