Zane Matthew

This plugin places a comment form similar to Facebook, only displaying a single line textarea, which submits when the user presses “enter/return” on their keyboard.
<h4>Features</h4>
<ul>
<li>Single line textarea</li>
<li>Auto expanding textarea</li>
<li>AJAX submitted comments</li>
<li>AJAX loaded comments</li>
<li>Admin settings for additional styling</li>
</ul>

Inline Ajax Comments

Displays a single line textarea for entering comments, users can press "enter/return", and comments are loaded and submitted via AJAX.

moklet

With the yahoo currency plugin you can display and embed Yahoo Currency Feeds in your WordPress posts and pages using the following shortcode:
<pre><code>[ycurrency base="Currency Code" currencies="Currency Code,Currency Code,Currency Code etc"]
</code></pre>
FILTER USAGE
<ul>
<li>Simple:</li>
</ul>
Just put a <code>[ycurrency base="Currency Code" xcur="Currency Code,Currency Code,Currency Code etc"]</code> in your post, and the rates will show up.
<ul>
<li>NAMED PARAMETERS</li>
</ul>
For some customisation there are some options you can use.
<ul>
<li>base : The Base Currency in international format (USD)</li>
<li>xcur : The other currencies you want to display the rate compared to the base currency seperated by a comma (GBP,EUR)</li>
</ul>
Examples:
<pre><code>[ycurrency base="USD" xcur="GBP,EUR,ZAR"] (display the buy and sell rate of the US Dollar against the British Pound,Euro,South African Rand)
</code></pre>
Finally note the whole thing must be on ONE line. No line breaks or else it won’t work.
1.00 Initial release.

Yahoo Currency

With the yahoo currency plugin you can display a feed of Yahoo Currency Exchange rates.

Inline Ajax Comments vs Yahoo Currency