The book Pattern Languages Of Program Design hillside.net 
is an eclectic collection of patterns. Many of them are accessible on line.
See Category Pattern index.
The Gang Of Four wrote up 23 Design Patterns. These patterns elaborate on their work:
They are also interested in Uses Of Gof Patterns.
Some pattern languages that are useful for large business applications.
Other sets of patterns (often pattern languages).
A pattern language for Object Based Programming in a procedural language.
Messaging Patterns
Individual patterns
Hands In View to improve skiing (but not sex).
Make Fear Fuel applies to skiing as well but has other uses too
Recycle Bin addresses resource usage
Build For Today Design For Tomorrow addresses system architecture
Private Class Data Pattern
Curios and Relics
Managed Tables revived: Space Manager
We're starting to talk about Anti Pattern.
Corrective Action is a proposed classification for those patterns that are used to keep a system stable. There's a big overlap between Corrective Action patterns and Anti Patterns.
Not a pattern - Not yet Used Three Times
Here are some examples of emergent patterns:
Analysis Patterns - NOT a Part of Kai Bender's PhD-thesis (this description probably applies to something different than what the link points to). By the way, they're all in German. The English versions are still to come. I'm working on it. You will find a pattern that illustrates the communication and negotiation process of a production facility and a retail company as well as the necessary organizational structures. The pattern is very high-level, however, it is a proven scenario that several companies use.
www-emw.inf.tu-dresden.de - A nice dead link.
Event Notifier - Pattern for Web Event Notification
See original on c2.com