The links to various free/opensource programs most useful and interesting of March:
Task Manager Deluxe offers powerfull features available in standard Windows Task Manager in lightweight portable package with many more enhancements
CCFinder it allows to find images with Creative Commons license
Advanced Uninstaller Pro powerful software for uninstalling programs
Auslogics BenchTown allows to benchmark your system and give you a score and compare results with other users
Kingsoft PC Doctor is a software for pc speed up and optimization, it includes registry cleaner, privacy and junk cleaner, anti-malware
Synchronicity easy, fast and lightweight backup and synchronization application available both as zip without installation or installer
FixBee it allows to clean your system from unnecessary or duplicate files and to optimize your drives
FreeRecover free file recovery program for NTFS drives
Inbox2 email client with social features, supports Gmail, Yahoo, AOL, Exchange, Facebook, Hyves, Hotmail, Twitter, Yammer, LinkedIn and other accounts can be configured manually
Kirara Encoder a GUI for FFmpeg, it provides audio and video conversion