richardphelps

This plugin allows users to chat in real time using AJAX. Users can connect with any other users.
Use the [bp-instant-chat] shortcode to embed the front end chat on any page.

BuddyPress Instant Chat

Instant chat plugin for BuddyPress allowing user to connect and talk in real time.

Code for the People Ltd

Scott (@scottsweb)

WP Ajax Search Widget is a replacement for the standard search widget but instead of redirecting you to a new search page the results are returned underneath the search input with an option to click through to the standard results page.
The widget allows you to choose how many results to show.
<a href="http://scott.ee/" title="WordPress designer and developer" rel="nofollow ugc">a plugin by Scott Evans</a>

WP Ajax Search Widget

Displays instant search results directly beneath a search widget.

BuddyPress Instant Chat vs WP Ajax Search Widget