Linda Rising's Patterns Almanac 2000 (0201615673) provides a brief description of a large catalog of patterns from various authors.
Floyd Marinescu's EJB Design Patterns: Advanced Patterns, Processes, and Idioms (0471208310) is available as a pdf, but I haven't yet found an online list of the patterns.
Alur, Crupi, and Malks' visual catalog from Core J2EE Patterns (0131422464)
Hillside.net Patterns Catalog or meta-catalog
See also RefactoringCatalog as many refactorings lead toward patterns.