sleuthkit.org is the official web site for The Sleuth Kit and Autopsy Browser. Both are open source digital investigation tools (a.k.a. digital forensic tools) that run on Windows and Unix systems (such as Linux, OS X, Cygwin, FreeBSD, OpenBSD, and Solaris). They can be used to analyze NTFS, FAT, Ext2, Ext3, UFS1, and UFS2 file systems and several volume system types.
SQL Power Injector is an application created in .Net 1.1 that helps the penetration tester to inject SQL commands on a web page.
Magic Rescue scans a block device for file types it knows how to recover and calls an external program to extract them. It looks at "magic bytes" in file contents, so it can be used both as an undelete utility and for recovering a corrupted drive or par
God overview of fuzzing tools and a couple of papers on fuzzing
VideoDL is a quick AJAX application that allows you to download online video into your computer. It supports top 3 video sites - YouTube, Google Video, and Break.com.
The Safari Microformats plugin notifies you when the author of the website has published Microformats and allows you to easily import hCards and hCalendars in Address Book and iCal