The PopUp plugin is a highly effective tool for getting visitors connected to your mailing list or simply showing ads, attractive, extremely fast and non annoying pop up box for your WordPress Blog.Here List of the Best 10 WordPress Popup Plugins.
The function of this plugin is to easily create links to simple popup windows. It supports multiple popup links on posts/pages/widgets and window positioning/centering options.
MaxBlogPress Unblockable Popup is made by the same people who created the Subscribers Magnet, but this plugin only does popups.
The WP-Announcements plugin is ideal for websites or blogs that would like to display a site wide announcement, featured post, important message, community notice, advertisement, survey form, email subscription form, emergency alert or anything you can publish in a post as a marquee or popup window using ShadowBox-JS or ThickBox.
Scrolling down popup plugin create the popup window with drop in scrolling effect. With this plugin we can confirm that particular content on your page gets attention to user. To display important announcement, an advertisement, or a promotional offer we can use this plugin.
WP Super Popup makes you able to easily create and manage modal and unblockable popups for your WordPress blog. It is proved that a modal and graphically attractive popup (like the one generated by this plugin) have an high conversion! For example you can use it for creating subscription forms or to promote your product in a viral way.
WPEmailFeedburnerPop is a plugin based on sexylightbox, with wich you could make your users suscriptions to your feedburner quickly and easy.
FasterIM Opt-In is a free WordPress popup plugin for Internet Marketers. Because of its focused purpose, it is easy to set up but you may need to tweak it a little to make it work properly/ as wanted. The feature list include:
A simple, attractive, non-annoying, extremely fast and light-weight pop-up box for your WordPress Blog. Supports Cookies,Custom design options,scheduling and custom Visual Edior where you can put your html code which will be showed to your visitors.
WordPress popup plugin create a popup message to your website. Sometimes its useful to add a popup to your website to show your ads, special announcement and for offers. Using this plug-in you can create unblock-able, dynamic and fully configurable popups for your blog.