Collusion is an experimental add-on for Firefox and allows you to see all the third parties that are tracking your movements across the Web. It will show, in real time, how that data creates a spider-web of interaction between companies and other trackers.

Turn your mockups into prototypes and get feedback fast

«[…] a new web motion and interaction design tool that allows designers to bring animated content to websites, using web standards like HTML5, JavaScript, and CSS3.»

… an open decentralized social network software … interacts with Facebook, Google, Diaspora, Twitter Status.net, etc. Features: http://project.friendika.com/features

Software developer Mike Matas demos the first full-length interactive book for the iPad -- with clever, swipeable video and graphics and some very cool data visualizations to play with. The book is "Our Choice," Al Gore's sequel to "An Inconvenient Truth."

… a free software package for retrieving files using HTTP, HTTPS and FTP, the most widely-used Internet protocols. It is a non-interactive commandline tool, so it may easily be called from scripts, cron jobs, terminals without X-Windows support, etc.

… an interactive timeline

… the most advanced monitoring tool for Mac OS X that displays system activity in real-time. It is designed to allow quick assessment of computer's state and it is powerful enough to make it a core utility in anyone's system troubleshooting toolkit.
atMonitor offers a better alternative to Apple's own "Activity Monitor" and combines the best of the features of many other existing monitoring utilities. It also adds an extensive list of unique features of its own. In addition to the standard CPU, GPU, VRAM, FPS, Disk and Network info, atMonitor allows interaction with processes, setting up triggers, logging, purging RAM and much more. atMonitor can be displayed in the menu bar, as a stand alone floating window or in the dock icon.

… a community music site featuring remixes licensed under Creative Commons where you can listen to, sample, mash-up, or interact with music in whatever way you want.

… allows you to append any number of items from your WordPress Media Library to Posts and Pages. This plugin does not directly interact with your theme, you will need to edit your template files.

Online time management service. … automatically observes as you interact with applications, documents and web sites.

an activity browser for the MacOS X. When the Slife client runs, it observes as you interact with applications, documents and web sites in your computer. It keeps track of when and for how long you work on projects, read news, check email, etc.

QuickTime Interactivity

… special type of text track that adds interactivity to a QuickTime movie. HREF tracks contain URLs that can specify movies that replace the current movie, load another frame, or that load QuickTime Player. They can also specify JavaScript functions or Web pages that load a specific browser frame or window.

... it implements the solution for the PNG trasparency provided by Unit Interactive Labs. It works on both img objects and background-image attributes.

… is a plugin for RapidWeaver. It builds a dynamic interactive menu-driven interface from your text and graphics. Items open with a smooth slide and close when you choose other content. The content can be just about anything you like: text, graphics, an

R2-D2™, the Interactive Astromech Droid™, is ready to serve you! (2007-01-24)

is a frontend for the popular WordPress blogging platform. A frontend is the code sitting between the db and your blog's readers, which manages all user interaction and displays the relevant content appropriately formatted.

Mockup… The term itself brings to mind the duality inherent in this omnipresent design artifact. It’s both a direct representation of a product experience and a shallow portrayal of an interactive system at the same time.