by Owen Winkler
Attaches geographic coordinate information to posts.

by Jonas M Luster
This plugin implements some technorati functions you might find useful.

by Bennett McElwee
Abbreviate all posts when viewed on multiple post pages. This makes all posts behave as if there is a “<!–more–>” after the first paragraph.

by James Van Lommel
Allows you to put PHP code into a post and have it eval()’d. Licensed under the MIT License

by Mark Jaquith
Allows multiple authors to be listed for each entry, automatically keeping track of who has edited the entry.