Simple, but very useful and powerful plaugin, which adds to your WordPress-powered website a special widget which can show unlimited banners in any siderbar of you theme.
All you need to do is to place it in the right place, add title, URL of the banner’s image and your affiliate link.
Features:
<ul>
<li>Unlimited banners to any sidebar of your website;</li>
<li>Show up any .jpg, animated .gif or transparent .png image;</li>
<li>Customize the width of every banner with ‘width’ parameter. No need to fill in the height.</li>
</ul>
Ownyourblog Banner Widget is bulletproof solution tested on many blogs.

Ownyourblog Banner Widget

Simple, but powerful widget to show any banner you want in your sidebar. One-click solution!

Igor Sazonov

LenSlider is a WordPress plugin for creation of visual sliders, carousels or slideshows for your site without writing any code. All sliders based on LenSlider skins, and skins have effects based on jQuery and CSS3. Use a shortcode in your posts/pages or static php-code in your template files to integrate any slider you made.
<h4>LenSlider Needs Your Support. Help to keep it updated</h4>
<ul>
<li>If you found a bug, you are welcomed to submit it to a special <a href="http://www.lenslider.com/report-bug/" rel="nofollow ugc">bug report form</a></li>
<li>If you have feature idea for a plugin, feel free to <a href="http://www.lenslider.com/suggest-idea/" rel="nofollow ugc">submit it</a>!</li>
<li>If you like this plugin, <a href="https://wordpress.org/support/view/plugin-reviews/len-slider" title="WordPress LenSlider Rating" rel="ugc">Please Leave A Rating here</a>. Also, click “Works” (over to the right) if you are satisfied with the plugin.</li>
<li>If you find this plugin useful to you, please consider <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=AYEX4C4M5YMWL&lc=US&item_name=LenSlider%20Wordpress%20Plugin&amount=3%2e00&currency_code=USD&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted" rel="nofollow ugc">making a small donation</a> to help contribute to my time invested and to further development. Because it is hard to continue development and support for this free plugin without contributions from users like you. Your donation will help encourage and support the plugin’s continued development and better user support.</li>
</ul>
<h4>Feel LenSlider2 power!</h4>
LenSlider2 has been considerably enhanced with regard to users opinions and plans that were set right from the start.
<h4>Requirements</h4>
<ul>
<li>WordPress version 3.3 and higher, highly recomended 3.5 version</li>
<li>PHP 5.2+ (tested with PHP Interpreter >= 5.2.17)</li>
<li>PHP GD2 library installed</li>
<li>Modern browser (IE 9+, Chrome 20+, Firefox 16+, Opera 11+, Safari 4+)</li>
</ul>
<h4>LenSlider base Features</h4>
<ul>
<li>Free (but donations are very welcomed)</li>
<li>Slider preview in admin panel via Thickbox</li>
<li>Unlimited number of Sliders</li>
<li>Admin AJAX support</li>
<li>LenSlider based on php classes, making the one a scalable and secure for hacking and for the system as a whole</li>
</ul>
<h4>LenSlider2 New Features</h4>
<ul>
<li>Disable for banners</li>
<li>WordPress 3.5+ READY!</li>
<li>YouTube & Vimeo support!</li>
<li>Easy creation and management of sliders within the WordPress admin</li>
<li>Skins based sliders</li>
<li>Fast: The plugin doesn’t use any additional MySQL database table. It uses just one query + WordPress Cache support</li>
<li>A selection of different default skins to choose from</li>
<li>Slider Banners Sorter: Order your banners in slider using drag & drop AJAX</li>
<li>SEO Friendly images name, alt support</li>
<li>Slider and Skin Settings</li>
<li>Comments for slider to make a slider known (recognizable) in a list</li>
<li>Easy sliders navigation in admin panel</li>
<li>No Need Of Knowledge of PHP, CSS or HTML. If you have knowledge of CSS, you can create your own stylesheet</li>
<li>Shortcode and php-code to integrate sliders</li>
<li>Thumbnail support</li>
<li>Post/Page/Category link insert helper</li>
<li><a href="http://www.lenslider.com/forum/" rel="nofollow ugc">User-friendly support</a></li>
</ul>
There are 3 ways to integrate sliders:
PHP-code:
or
or by Shortcode button: 
 [lenslider id=”SLIDER_HASH”]
<a href="http://www.lenslider.com/forum/" rel="nofollow ugc">Support forum</a>
Credits
<ul>
<li>Uses <a href="http://dev.mauvm.nl/mTip/" rel="nofollow ugc">jQuery mTip plugin</a></li>
<li>Uses <a href="https://github.com/cmcculloh/jQuery-UI-Tabs-Rotate" rel="nofollow ugc">jQuery UI Tabs Rotate for jQuery UI 1.9+</a></li>
<li>Uses <a href="https://github.com/tigusigalpa/jQuery-UI-tabs-Rotate-Pause-on-hover" rel="nofollow ugc">jQuery UI Tabs Rotate: Pause on Hover for jQuery UI 1.9+</a></li>
<li>Uses <a href="http://taitems.github.com/UX-Lab/ToggleSwitch/index.html" rel="nofollow ugc">jQuery UI Toggle Switch</a></li>
<li>Thanks to <a href="http://www.behance.net/busty_rusty" rel="nofollow ugc">Andrew Gaewski</a> for UX admin design</li>
</ul>
Immediate plans to improve the plugin (sorry, author dont have enough time yet):
<ul>
<li>MORE skins</li>
<li>Several images for a slider</li>
<li>Some wonderful but secret yet plans</li>
</ul>

Len Slider

LenSlider is a skins based slider/carousel/slideshow plugin with jQuery/CSS3 effects that allows to generate and easy integrate the ones to your site.

Ownyourblog Banner Widget vs Len Slider