Paypal
in 90 toolboxes General funds transfer service which can be adapted for online donations.
WordPress
in 198 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.
Drupal
in 159 toolboxes Very extensible CMS platform based on PHP and used by many NGOs - "Community Plumbing"
Firefox
in 345 toolboxes Firefox is the popular open source web browser from Mozilla
Skype
in 228 toolboxes Free/cheap Internet telephony and handy IM tool.
OpenOffice
in 203 toolboxes Full-featured open source office productivity suite, featuring word processor, spreadsheet, presentation, drawing and database packages; free MS Office replacement.
Thunderbird
in 137 toolboxes Mozilla's Open Source email client
YouTube
in 75 toolboxes Upload up to 100MB videos and embed them in your sites. Now with dedicated channels for nonprofits.
LinkedIn
in 144 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.
Facebook
in 114 toolboxes Facebook is a social utility that connects you with the people around you.
Doodle
in 33 toolboxes Meeting scheduler.
Eventbrite
in 17 toolboxes Event registration online
Twitter
in 125 toolboxes Twitter is a global community of friends and strangers answering one simple question: What are you doing? Answer on your phone, IM, or on the web.
MailChimp
in 18 toolboxes Email marketing/newsletter tool that tracks open rates, click-throughs, etc, segmentation support, and an "infinite" number of lists.
Dropbox
in 41 toolboxes Secure hosted file sync between linux, mac, windows, iphone, android with web backup/storage and sharing.
VerticalResponse
in 15 toolboxes Full-featured email newsletter and message blasting tool, with special free nonprofit pricing (10,000 free messages per month).
Google+
in 10 toolboxes Social network, blogging and collaboration platform from Google
google hangout
in 6 toolboxes Video chat with up to nine people at once, face-to-face-to-face.
