In this paper, we describe a method of generating link collections in a user-specified category by comprehensively collecting existing link collections and analyzing their hyperlink references. Moreover, we propose a visualization method for a bird's-eye view of the generated link collections. Our methods are effective in grasping intuitively the trend of significant sites and keywords in a category. Categories and Subject Descriptors H.5.4 [Information Systems]: Hypertext/Hypermedia General Terms Algorithms Keywords Link collection, Hyperlink analysis, Visualization