Paolo T. (pixline)

A news ticker widget, able to display latest posts as well as remote RSS feed. This widget is written in Unobtrusive Javascript, so this means that it WILL degrade gracefully if users don’t have javascript, allowing them as well as search engines to even index these links.
Based on the wonderful <a href="http://onlinetools.org/tools/domnews/" rel="nofollow ugc">DOMNews 1.0</a> (by Chris Heilmann) and <a href="http://simplepie.org" rel="nofollow ugc">SimplePie RSS-parsing php class</a>
<a href="http://talks.pixline.net/forum/accessible-news-ticker-widget" rel="nofollow ugc">Accessible News Ticker support forum</a>

Accessible News Ticker (ANT)

A news ticker/scroller widget that displays posts and RSS with accessible javascript).

Flourish Pixel

FP News Scroller allows you to display news/post from a specific category or from all category in a widget position with with infinity scroll effects. The scrolling options/parametrs/controls are managable from wordpress admin area. You can also assign the category and the post limit.
** Fully Responsive
You can control over your news scroller’s scrolling transition effect, time, direction etc.
<h4>Plugin Settings</h4>
<ul>
<li>Category ID – textbox</li>
<li>Post Limit – Options</li>
<li>Direction – Options</li>
<li>Speed – textbox (pixels per second)</li>
<li>Moving – Options (weather to start the ticker in a moving or static position)</li>
<li>startEmpty – Options (weather to start with an empty or pre-filled ticker)</li>
<li>duplicate – Options (if there is less items then visible on the ticker you can duplicate the items to make it continuous)</li>
</ul>

FP News Scroller

This plugin will display news/post from a specific category or from all category in a widget position with infinity scroll effects.

Accessible News Ticker (ANT) vs FP News Scroller