OTR allows you to have private (not just encrypted) conversations over instant messaging by providing: Encryption, Authentication, Deniability, and Perfect forward secrecy.
3.0.0
GNU General Public License
Paypal
in 54 toolboxes General funds transfer service which can be adapted for online donations.
WordPress
in 96 toolboxes Flexible open-source content management and blogging software with an active user and developer community and a wide variety of plug-ins or extensions available.
Firefox
in 218 toolboxes Popular open source web browser from Mozilla
Skype
in 138 toolboxes Free/cheap Internet telephony and handy IM tool.
del.icio.us
in 122 toolboxes Web based social bookmarking lets you share online finds and discover new ones. Ground zero for tagging.
OpenOffice
in 119 toolboxes Full-featured open source office productivity suite, featuring word processor, spreadsheet, presentation, drawing and database packages; free MS Office replacement.
Ubuntu
in 85 toolboxes User-friendly Linux distribution
Pidgin
in 59 toolboxes A multi-protocol Instant Messaging (IM) client
Thunderbird
in 84 toolboxes Mozilla's Open Source email client
MediaWiki
in 53 toolboxes Powerful wiki software built to support the Wikipedia project
Ruby on Rails
in 22 toolboxes Web application framework
Enigmail
in 16 toolboxes Enigmail is an extension to the mail client of Mozilla / Netscape and Mozilla Thunderbird which allows users to access the authentication and encryption features provided by GnuPG
Audacity
in 49 toolboxes Free, open source software for recording and editing sounds.
GIMP
in 57 toolboxes A freely distributed piece of software for such tasks as photo retouching, image composition and image authoring.
Mac OS X
in 49 toolboxes Apple's desktop operating system.
Adium
in 45 toolboxes Adium is a free instant messaging application for Mac OS X that can connect to AIM, MSN, Jabber, Yahoo, and more.
Wikipedia
in 74 toolboxes Wikipedia is a global and multilingual Web-based cooperative free-content encyclopedia.
LinkedIn
in 75 toolboxes Social networking for non-social purposes with a focus on professional development, networking for jobs and problem solving through the expertise of those in your extended network.
Gmail
in 91 toolboxes Gmail is a web-based email with very user-friendly interface and huge storage capacity
Colloquy
in 14 toolboxes Colloquy is an advanced IRC & SILC client
