Pausing up-down message scroller FF1+ IE9+ Chrome
This is an up-down message scroller that pauses between each message! Responsive in nature, the scroller supports percentage widths and uses CSS3 animations for buttery smooth, mobile optimized animations.

SAG Content Scroller FF1+ IE6+ Opera8+
SAG Scroller takes a regular UL list and scrolls it upwards, one LI at a time and pausing in between. It lets you showcase content that can either be defined inline on the page, inside an external file and fetched via Ajax, or sourced from RSS feeds. The scroller can be set to either auto scroll, or on user demand via the navigation panel as part of its interface.
Also Listed in Ajax and Iframe, XML and RSS

Fading message scroller FF1+ IE5+ Opr7+
This is your regular message scroller, except in IE5+ and NS6+, the messages are gradually faded into view!

Translucent scroller FF1+ IE5+ Opr7+
This is a sleek, "translucent" scroller. In between message changes, the scroller turns semi transparent (in IE4/NS6+) as the next message slides up to cover the old. 

Cross Browser marquee FF1+ IE5+ Opr7+
This is a marquee script that scrolls rich HTML from left to right. Did we to mention that it's also cross browser?

Cross Browser marquee II FF1+ IE5+ Opr7+
This is version 2 of the cross browser marquee that scrolls the contents upwards (instead of sideways). It's also different in that the content to scroll is not stored inside JavaScript variables, but as plain HTML wrapped around a special DIV.

Text and Image Crawler FF1+ IE6+ Opr7+
Text and Image Crawler is a highly configurable, continuous scrolling marquee that scrolls automatically or can be manually controlled by the mouse cursor. The Crawler can go left or right, contain text, images or both. It is a continuous marquee in that there exists no blank gaps in between passes.

IFRAME scroller FF1+ IE5+ Opr7+
With the help of <IFRAME>, this scroller script uses an external HTML file as its content to scroll and display, making updating and adding rich HTML to the scroller a breeze. Works in both IE4+ and NS6+, degrading well with the rest (simply not appearing).

IFRAME ticker FF1+ IE5+ Opr7+
Similar to the above, this script displays content from an external HTML file, except the contents are displayed one at a time (rotated).

RSS Ticker (Ajax invocation) FF1+ IE5+ Opera8+
This powerful RSS ticker script lets you easily display any RSS content on your site in a ticker fashion! This script uses a simple PHP based RSS parser called LastRSS to retrieve an RSS feed, then Ajax and DHTML to display the feed dynamically and with flare.
Also Listed in Ajax and Iframe & XML and RSS

Pausing RSS Scroller FF1+ IE5+ Opera8+
Pausing RSS scroller is an innovative scroller that combines PHP and external JavaScript to let you show any RSS feed on your site- and beyond! By bypassing Ajax in favour of dynamically loaded JavaScript, the scroller can be included on any site, enabling you to syndicate your feed for other sites to display, just by allowing webmasters to cut and paste the frontend portion of this script.
Also Listed in Ajax and Iframe & XML and RSS

Ajax XML ticker (txt file) FF1+ IE5+ Opera8+
This is an Ajax enhanced ticker script that lets you use a text file as the contents of the ticker to show! Easily define your messages, which support rich HTML, all inside this external text file. Now there's no more excuse to not update the contents of your ticker more often!
Also Listed in Ajax and Iframe & XML and RSS

DOM XML ticker FF1+ IE5+
By combining DHTML with XML, this ticker script makes updating its contents a breeze, through an external XML file. Just open the file, and enter the desired messages to show. Plain text and links (with targeting) are supported, and script is functional in both IE5+ and Firefox.
Also Listed in XML and RSS

Page scroller (custom scrollbar) FF1+ IE5+ Opr7+
Looking for a script that replaces the window's default scrollbars in scrolling the page? This script allows you to use custom images to scroll the page up/down as the mouse moves over them.

Mike's DHTML scroller FF1+ IE5+
-User Submitted
Mike's DHTML scroller features smooth pausing between messages, configurable scroll speed, color, and font. Oh yes, the script's also cross browser functional...

Memory Scroller FF1+ IE5+ Opr7+
This thoughtful DHTML scroller remembers its last scrolled position just before the visitor navigates to another page, and upon his return, picks up the scrolling from where it last left off. For scrollers that contain a long message, your visitors will surely appreciate this functionality.

Memory Ticker FF1+ IE5+ Opr7+
This DHTML ticker remembers the last viewed message just before the visitor navigates to another page, and upon his return, picks up the message display from where it last left off. For tickers that contain many messages, it quickly becomes an indispensable feature.

DHTML Ticker script FF1+ IE5+ Opr7+
This is a DHTML ticker script that takes in an array of messages and displays them one message at a time. For you people that like a little more flare, the script also supports an optional fading effect between messages!

Expandable ticker FF1+ IE5+ Opr7+
This script expands on the regular ticker, by delivering its messages both in sequence (one at a time), and optionally, all at once. No more waiting to get to a message you saw earlier!

Expandable Drop Down Ticker FF1+ IE6+ Opr7+
Quite possibly the only ticker of its kind out there, Expandable Drop Down Ticker brings together the best of two worlds to create a ticker that can be viewed both sequentially and simultaneously. A drop down menu is automatically generated out of snippets of the ticker contents to let the user navigate the ticker on demand.

DHTML Billboard script FF1+ IE5+ Opr7+
Real life billboards use interesting transitional effects in between messages to catch viewers' attention. Well, so does this DHTML billboard script (IE5.5+ only) ! The script uses regular DIV tags to contain all the messages you wish to be shown, for ease of customizing them.

ProHTML Ticker FF1+ IE5+ Opr7+
Tired of the meticulous format required when entering messages into JavaScript Tickers? ProHTML Ticker rotates regular HTML messages wrapped around simply in DIV tags, making updating its content a breeze!

Featured Content Slider FF1+ IE5+ Opr7+
Featured Content Slider makes a slideshow out of arbitrary content on your page, so users can manually select a content to see or have them rotated automatically. Pagination links let the user quickly pick a content to show. Each content is simply normal HTML wrapped in DIV tags for effortless integration.
Also Listed in Dynamic Content

Fading Ticker Tape Script FF1+ IE5+ Opr7+
A cross browser ticker tape that can display an infinite number of messages. Each time the message changes, a fading effect is accompanied. The messages themselves are each clickable, and can be configured to go anywhere upon click.

Slide-in scroller FF1+ IE5+ Opr7+
This scroller script conjures up a lively way of bringing messages into view- by sliding them from the left edge of the window.

Manual Scroller FF1+ IE5+ Opr7+
This DHTML scroller puts you at the helm. Scroll up, down, or pause as you choose. Plain HTML is used to specify its contents, so embedding/updating this content becomes a snap.

Typing Scroller FF1+ IE5+ Opr7+
-User Submitted
This scroller slashes and types its way into view! Visible and functional in IE 4+ and NS6+.

Document title Scroller FF1+ IE5+ Opr7+
-User Submitted
Scroll your document's title into view with this script. Useful, for example, to display long titles.

External Data Source Marquee IE5+ legacy
An advanced scrolling marquee that uses an external HTML document as its content to scroll! Uses IE 5's default download behavior to accomplish this.

News Updater IE5+ legacy
A "news updater" that rotates among different messages. (The same script used in the frontpage of Dynamic Drive).

News Bar FF1+ IE5+ Opr7+ legacy
-User Submitted
An attractive "news bar" script. Messages are automatically rotated and displayed, with the ability to manually cycle back and forth through them. This script is created entirely using form buttons.

Dynamic Fader IE5+ legacy
-User Submitted
Nicholas's cool Dynamic Fader script gently brings into view various messages, then fades them out after a few seconds. Also supports the display of HTML content (such as links), apart from plain text. Cool!

Cursor Scroller IE5+ legacy
This lonely scroller follows your mouse around, ensuring that the message it carries won't be missed by your visitors. And when that time comes for it to leave the scene, two methods are available to accomplishing its removal- either automatically after x seconds, or by double clicking your mouse.

Wordpress Users: Step by Step instructions to add ANY Dynamic Drive script to an entire Wordpress theme or individual Post