Xen# Xen Management Consoles [from Wikipedia]

http://en.wikipedia.org/wiki/Xen#Xen_Management_Consoles links to various WEB/GUI management tools for XEN

intoDNS: checks DNS and mail servers health

http://intodns.com/ online tool to check dns records

Linux.com :: Efficient rsyncrypto hides remote sync data

http://www.linux.com/feature/125322 small tools to rsync encrypted files

Ptop -- postgresql top (and other similar utils) [Russian]

http://www.opennet.ru/opennews/art.shtml?num=13909 postgresql top and other similar monitoring tools for mysql, linux io, etc

VMware Tools for Linux Guests

http://www.vmware.com/support/ws5/doc/ws_newguest_tools_linux.html#wp1118025 how to install vmware utilities for linux guests

md5 reverse lookup

http://md5.crysm.net/ useful for simple things; some cool links

PostgreSQL Diff Tool : Anoop Menon's Blog

http://blog.blackvoltage.org/code-and-projects/postgresql-diff-tool/ Python based tool for diff’ing databases( also see pgdiff)

SQLite Database Browser

http://sqlitebrowser.sourceforge.net/ visual devel tool for SQLite

Garry's Bit Patterns: TortoiseSVN and Visual Studio Integration - Visual Studio 2008

http://garrys-brain.blogspot.com/2007/07/tortoisesvn-and-visual-studio.html How to include subversion menus (Tortoise SVN ) into Visual Studio 2008

GPL Software from Internet Connection

http://gpl.internetconnection.net/ various tools under GPL license , interestining are: