These sites allow you to share puzzles with other solvers, or include forums.
Griddlers
Net —
“Extended Paint by Numbers online
puzzles, new puzzles published everyday. Free fun.” —
Includes colours and isometric puzzles; a community
of solvers!
네모네모로직퍼즐-LOGICHOME
ver6.1 —
A site for Korean fans to share
puzzles, by 김경래 (Kyungrae
Kim); includes a Java helper