Here's my online collaboration tools list. It is an ever growing and contracting list. I'd love to collaborate with you on this list - leave a comment with your best tool.
Tools for collaboration on documents:
http://drive.google.com Google Docs
http://icloud.com - Apple's Pages, Numbers, KeyNote etc.
http://codebunk.com collaborative platform for online technology interviews (code & run)
http://usecandor.com/ - a better form of brainstorming (removes first in list bias)
Tools for Agile/Scrum/Lean/Kanban
http://plans-for-retrospectives.com online tool for planning a retrospective's activities
https://www.retrium.com/demo online tool for Scrum Retrospectives with dislocated teams
http://planningpoker.com online tool for playing Planning Poker (works well w/ distributed teams)
https://www.pointingpoker.com another tool for Planning Poker
http://planningwith.cards/ a planning poker plug-in for google Hangouts or HipChat
http://www.mountaingoatsoftware.com/tools velocity calculator, theme screening, project success sliders
http://www.dotvoting.org/ online dot voting tool
Fifty ways to Improve Stories - MindMap
Card Sorting Tools
Conteneo Collaboration Cloud (Innovation Games) - Speedboat, Prune the Product Tree, etc.
Cardboard Story Mapping tool
Retrium a Retrospective tool - virtualization of one technique
Tools for audience polling
https://www.polleverywhere.com embed live poll reporting (via text, and web site)
Tools for Tele-presense and Dis-located Teams
Kube - $500 desktop remote presence device
Beam Pro - telepresence robot (starting at $2000)
Zoom - video conference tool (also iPad screen sharing tool)
Team collaboration tool Squiggle
A tool designed for the distributed team Sococo a simulated room environment
Tools for Pair Programming and the like
http://duckie.me/ - confessional debugging tool - talk to the duckie
http://cyber-dojo.org - a place to practice programming
Tools for Data Analytics and Dashboards
http://www.screenful.me/tour/ rotating dashboards for wall mounted displays
http://map.ipviking.com live world map of internet attacks
Tools for marking up comments and sharing files:
http://www.framebench.com/ integrating with G+ Hangouts
Tools for Creative workflow:
Tools for Inspection and Testing:
http://whatismylocalip.com - find your local & public IP address
http://www.whatismyscreenresolution.com Inspect your browser's resolution
Tools for web site markup and critique:
Tools for web site interaction simulation:
http://slowyapp.com/ - bandwidth limiter (how does a slow connection preceive your site?)
Tools for social usability testing web sites:
http://stackshare.io/ Learn about the tech stack behind some of the world's best software companies.
https://github.com/ Powerful collaboration, code review, and code management for open source and private projects.
https://resources.codeship.com/ Don't waste time maintaining your local CI server. Let Codeship take care of testing and deploying your apps.
Tools for Paper Prototyping - Mock ups - Wireframes:
http://www.axure.com prototype web sites & apps
http://www.uxpin.com design is about solving problems
Timezone, Date Calculator etc.
https://www.followupthen.com/ email reminder service; Ex: everyFeb14@followupthen.com
http://whenisgood.net/ schedule meetings - find the best time
TinyLetter - personal elegant way for people to send letters to their friends, fans and followers.
http://www.mail2cloud.io/ - strips email attachments and versions them in cloud storage
Mind Mapping Online:
Online Screen Sharing:
Group Task Management:
Social Media Management Tools:
Enterprise Social Networks:
Social Media Presence - Online Resume - Personal Landing Page
http://about.me - a personal landing page
http://flavors.me/ - a unified web presence landing page
http://sumry.in - resume building service - online
http://vizualize.me/ - partnered with LinkedIN to provide visualization of your profile
http://re.vu/ - not just a visual resume; may link to your traditional resume
http://www.enthuse.me/ - online marketing of yourself
https://www.accredible.com/ - add credibility to your course work or portfolio
Data Visualization Tools:
http://www.worldmapper.org/index.html view a world map scaled by global aspects (GDP, etc.)
http://keen.github.io/dashboards/ a tool set for creating Dashboards
Online Learning Centers
https://degreed.com/ - Jailbreaking the College Degree - track learning because ( education != learning )
https://www.class-central.com/university/stanford - MOOC
https://www.codeschool.com/ Learn by Doing: Ruby, Rails, jQuery, AngularJS, etc
https://www.codingame.com/ Practice your coding skills with multiplayer programming games
Not on the list - add a comment with your favorite tool for collaboration.
Ultimate List of Tools for Managing Remote Teams
What’s the Best Way to Implement Collaboration Tools?
Top Collaboration Tools in 2012
10 Excellent Feedback Tools for Web Designers
10 Tools for Getting Web Design Feedback
Top 20 Data Visualization Tools
30 Greatest Online Project Management and Collaboration Tools For Easy Communication!
63 Tools Reviewed - Comprehensive Review of UX Tools
22 File-Sharing Tools