Chetan Gole

This plugin will give special smooth scroll effect to your BACK TO TOP, TOP TO BOTTOM like links. 
It also has capacity to add such links in your WordPress blog, if they are not present.
You can special <a href="http://www.thechetan.com/smoothscrolllinks/" rel="nofollow ugc">add smooth scroll effect</a> in your blog for page navigation links.
By <a href="http://chetangole.com/" rel="nofollow ugc">Chetan Gole</a>.

Smooth Scroll Links [SSL]

This plugin will give special smooth scroll effect to your BACK TO TOP, TOP TO BOTTOM like links. It also has capacity to add such links in your Wordp …

farinspace

This plugin allows you to show and hide specific portions of content within a post or page. Visitors can then use custom show/hide links to show or hide the portions you’ve defined. The plugin enables a few WordPress shortcodes: <code>[peekaboo]</code>, <code>[peekaboo_link]</code> and <code>[peekaboo_content]</code>.
To learn more read the <a href="http://farinspace.com/wordpress-peekaboo-plugin/" title="Peekaboo extended documentation" rel="nofollow ugc">extended documentation</a>.

Peekaboo

This plugin allows you to show and hide specific portions of content within a post or page. Visitors can then use custom show/hide links to show or hi …

Smooth Scroll Links [SSL] vs Peekaboo