MouseOver Plugin is the easiest way to grab your visitors' attention! Lead your visitors in an elegant and smart way to your pages and offers.
Adds tinytips tooltips to links on your site. Comes with different themes.
Mouseover gallery divids the content into a left_part and right_part (classes) where the thumbs are put into the right_part and the enlargments comes
Blibahblubah allows the blog owner to customize the tag cloud so that mousing over the tag cloud will see customizable effects.
Adds a simple mouseover-effect for WP-Syntax. Expands the "Sourcecode"-Frame to the sourcecode length. So it's not needed to scroll, if
Show a small banner and on mouse event (over, out, click, dblclick) show another big or 2nd banner anywhere in your template, post, page or widget.
Show the last, most popular or random posts of any category using a selected thumbnail image and different effects.