Michael Tumlad

Counts the title, content, and excerpt characters while you edit your post or page via the admin screen. Even counts the title characters while in Quick Edit!
Decon(structed) Character Counter is a real-time character counter
<ul>
<li>for title (post or page)</li>
<li>for content (post or page)</li>
<li>for excerpt (post or page)</li>
<li>for biographical info (user)</li>
<li>for Quick Edit title (post or page)</li>
</ul>
Works out of the box and seamlessly integrates with your WordPress admin dashboard so you can focus on writing.
Also comes with a real-time SEO-friendly reminder, just in case.

Decon Character Counter

Counts the title, content, and excerpt characters while you edit your post or page (even in Quick Edit).

SeiferTim

Ginchen

Grabs your character from the Armory and displays their basic info. Allows multiple widgets with different character information. Works for US and EU realms. You can choose to hide or display equipment, professions, and achievements.
You can optionally show a 3D model of your character using Wowhead’s model viewer.
Caches data for 15 minutes to reduce the number of requests.
NOTE: Currently this plugin requires cURL and PHP5 to work.

WoW Armory

Easily displays your character's stats from the Armory.

Decon Character Counter vs WoW Armory