I found a great link today. It has more than usual information on design patterns. The author made a periodic table out of patterns. First time for me to see table like that.
- pattern comparisons, similarities
- how patterns work with other patterns
- code example, before and after apply
- c++ and java examples
- UML and other diagrams
- external references
It compares similarities and differences between patterns. Also, some brief descriptiont on each one.