Linux

The Exploit Database (EDB) – an ultimate archive of exploits and vulnerable software. A great resource for penetration testers, vulnerability researchers, and security addicts alike. Our aim is to collect exploits from submittals and mailing lists and concentrate them in one, easy to navigate database.

At this community site you'll find the best freeware, reviewed and rated.

BackupGoo performs a backup of your content at Google (Google Mail / GMail, Google Calendar, Google Contacts, Google Docs, Google Reader).

Wink is a Tutorial and Presentation creation software, primarily aimed at creating tutorials on how to use software (like a tutor for MS-Word/Excel etc). Using Wink you can capture screenshots, add explanations boxes, buttons, titles etc and generate a highly effective tutorial for your users.

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Angel (Intelligent Agent Project)
'Angel' is the codename of a new Artificial Intelligence project, which is part of my current research. The project started in 2010 and is a nonprofit research project.

Speed Tracer is a tool to help you identify and fix performance problems in your web applications. It visualizes metrics that are taken from low level instrumentation points inside of the browser and analyzes them as your application runs. Speed Tracer is available as a Chrome extension and works on all platforms where extensions are currently supported (Windows and Linux).

Access your history, passwords, bookmarks and even open tabs across all your devices.

XaoS is an interactive fractal zoomer. It allows the user to continuously to zoom in or out of a fractal in a fluid, continuous motion. This capability makes XaoS great for exploring fractals

sw, the Linux platform of DERI Galway's Semantic Web Cluster